{"id":25259,"date":"2025-06-16T11:32:23","date_gmt":"2025-06-16T09:32:23","guid":{"rendered":"https:\/\/www.lampert.info\/?post_type=tutorial&#038;p=25259"},"modified":"2026-05-29T09:50:54","modified_gmt":"2026-05-29T07:50:54","slug":"industry-seat-repair","status":"publish","type":"tutorial","link":"https:\/\/www.lampert.info\/en\/tutorials\/industry-seat-repair\/","title":{"rendered":"Industry &#8211; Seat repair"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"25259\" class=\"elementor elementor-25259 elementor-25208\" data-elementor-post-type=\"tutorial\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-59c4b9d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"59c4b9d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c172e39\" data-id=\"c172e39\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8d4eadf elementor-widget elementor-widget-heading\" data-id=\"8d4eadf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Repair of a vintage motorcycle seat<br \/>(BMW R 100 S)<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01c0409 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"01c0409\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54fd470 elementor-widget elementor-widget-text-editor\" data-id=\"54fd470\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: left;\"><span data-teams=\"true\"><span dir=\"ltr\">Hinges on motorcycle seat benches are subject to high mechanical stress &#8211; and if they break, replacement parts are often difficult or impossible to obtain, especially on older machines. In this tutorial, we show how a broken seat bench hinge can be welded precisely and without distortion using the Micro Arc Welder &#8211; without heat distortion on the surrounding sheet metal and without time-consuming disassembly. A quick, clean solution that is particularly suitable for restoring vintage motorcycles.  <\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-c50eae9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c50eae9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-61b5234\" data-id=\"61b5234\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-80c7f64 elementor-widget elementor-widget-heading\" data-id=\"80c7f64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The initial situation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-458f3b4 elementor-widget elementor-widget-text-editor\" data-id=\"458f3b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p> <\/p><p>Dieses Anwendungsbeispiel zeigt einen Erm\u00fcdungsbruch an einem Scharnier der Sitzbank <br\/>einer alten BMW R 100 S. <\/p><p> <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0aa147c elementor-widget elementor-widget-text-editor\" data-id=\"0aa147c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Spare parts for such old vehicles (in this case 47 years old) are hard to come by and repairs are often the last chance to keep the assemblies ready for use. In this case, welding makes it possible to continue using the old seat bench. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ae2e92d\" data-id=\"ae2e92d\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a688749 elementor-widget elementor-widget-image\" data-id=\"a688749\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMTUsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzEtc2NhbGVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-1024x683.jpg\" class=\"attachment-large size-large wp-image-25215\" alt=\"Initial situation of the broken hinge of a BMW R100 seat bench\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-1024x683.jpg 1024w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-300x200.jpg 300w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-768x512.jpg 768w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-1536x1024.jpg 1536w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_1-2048x1365.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">The two fractions of the broken seat bench hinge<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-44ca69b elementor-widget elementor-widget-image\" data-id=\"44ca69b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMTgsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzMtc2NhbGVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-1024x683.jpg\" class=\"attachment-large size-large wp-image-25218\" alt=\"Broken hook on the hinge of a BMW bench seat\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-1024x683.jpg 1024w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-300x200.jpg 300w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-768x512.jpg 768w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-1536x1024.jpg 1536w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_3-2048x1365.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e4744c elementor-widget elementor-widget-image\" data-id=\"9e4744c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMjEsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzQtc2NhbGVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-1024x683.jpg\" class=\"attachment-large size-large wp-image-25221\" alt=\"Fracture point of the broken hinge of a BMW seat bench\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-1024x683.jpg 1024w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-300x200.jpg 300w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-768x512.jpg 768w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-1536x1024.jpg 1536w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_4-2048x1365.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-8197591 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8197591\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-bddc369\" data-id=\"bddc369\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f4c54b9 elementor-widget elementor-widget-heading\" data-id=\"f4c54b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The preparation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b97a4c elementor-widget elementor-widget-text-editor\" data-id=\"2b97a4c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>First of all, the parts are thoroughly cleaned and the break points are deburred where necessary. In manchen F\u00e4llen muss etwas nachgeschliffen werden, um die Teile korrekt positionieren zu k\u00f6nnen. <\/p><p>In addition, careful cleaning and degreasing of the welding areas are essential work steps before starting any welding task, e.g. with acetone, brake cleaner or in an ultrasonic device.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a8c1cee\" data-id=\"a8c1cee\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8d22b9f elementor-widget elementor-widget-spacer\" data-id=\"8d22b9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-af973b2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"af973b2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-c6e33de\" data-id=\"c6e33de\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ec169f0 elementor-widget elementor-widget-heading\" data-id=\"ec169f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The implementation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99140f6 elementor-widget elementor-widget-text-editor\" data-id=\"99140f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Our <a href=\"https:\/\/www.lampert.info\/en\/products\/industry\/microarcwelder\/\">Micro Arc Welder<\/a> is used here, as the broken component is relatively massive and the highest possible stability needs to be achieved &#8211; the Micro Arc Welder is <a href=\"https:\/\/www.lampert.info\/en\/\">Lampert<\/a> &#8216;s most powerful micropulse welding machine and is best suited to this task.<\/p><p>First, the fractures on the top side are welded in the areas with good contact to each other, and then any remaining defects and indentations are filled with <a href=\"https:\/\/www.lampert.info\/en\/products\/welding-wires\/\">welding wire<\/a>.<\/p><p>Starting with the standard welding geometry, a dedicated welding curve offers good performance for a homogeneous welded joint when welding wire is applied.  <\/p><p>As the exact material designation cannot be determined in this case and a steel alloy can be assumed, our easy-flowing CMS welding wire (\u00d8 0.4 mm, <br\/>art. no. 304 320) is used for this task and applied using the <a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2024\/10\/Flyer_WirePen_A5_DE_mail.pdf\" target=\"_blank\" rel=\"noopener\">WIRE PEN welding wire feeder<\/a>.   <\/p><p>On the lower side, a relatively large gap can be seen in the area of the intended fillet weld. This must be filled with the same welding wire to achieve the necessary stability. Start with the pre-set welding curve for joint and angle situations. When applying welding wire, you can then switch to the specially designed welding curve with the recommended parameters for power and pulse duration.   <\/p><p>The larger the gap between two components, the more complex the welding generally becomes and the more time it takes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-62aa4c2\" data-id=\"62aa4c2\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88a44ae elementor-widget elementor-widget-image\" data-id=\"88a44ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_2b.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_2b\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyNDIsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzJiLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"223\" height=\"142\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_2b.jpg\" class=\"attachment-large size-large wp-image-25242\" alt=\"Close-up of the break in an old BMW bench seat\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4318e98 elementor-widget elementor-widget-image\" data-id=\"4318e98\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5d.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_5d\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMjQsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"390\" height=\"217\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5d.jpg\" class=\"attachment-full size-full wp-image-25224\" alt=\"Fillet weld in detail\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5d.jpg 390w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5d-300x167.jpg 300w\" sizes=\"(max-width: 390px) 100vw, 390px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-3454efe elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3454efe\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4ba4ae2\" data-id=\"4ba4ae2\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-42970e7 elementor-widget elementor-widget-heading\" data-id=\"42970e7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The post-processing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b61e66 elementor-widget elementor-widget-text-editor\" data-id=\"3b61e66\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Die Bearbeitung der Schwei\u00dfn\u00e4hte wird hier auf das N\u00f6tigste beschr\u00e4nkt und nimmt nicht viel Zeit in Anspruch. <\/p><p>An der Kehlnaht muss die Schwei\u00dfung nicht ausgearbeitet werden, um die kaum sichtbare Verbindung nicht unn\u00f6tig zu schw\u00e4chen. <\/p><p>The back of the hinge is ground flat as little as necessary and lightly rubberized to achieve good contact with the base plate of the seat bench.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-62e3603\" data-id=\"62e3603\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb3afb0 elementor-widget elementor-widget-image\" data-id=\"cb3afb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_5\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMzAsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzUtc2NhbGVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-1024x683.jpg\" class=\"attachment-large size-large wp-image-25230\" alt=\"Welded seat hinge on a BMW R100S\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-1024x683.jpg 1024w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-300x200.jpg 300w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-768x512.jpg 768w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-1536x1024.jpg 1536w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_5-2048x1365.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ca90bd elementor-widget elementor-widget-image\" data-id=\"6ca90bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_6b.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_6b\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMjcsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzZiLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"584\" height=\"397\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_6b.jpg\" class=\"attachment-large size-large wp-image-25227\" alt=\"Ground weld on the seat hinge of a BMW R100S\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_6b.jpg 584w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_6b-300x204.jpg 300w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-inner-section elementor-element elementor-element-2e33b21 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e33b21\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3d29a0a\" data-id=\"3d29a0a\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4912c6b elementor-widget elementor-widget-heading\" data-id=\"4912c6b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The result<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3fa29a elementor-widget elementor-widget-text-editor\" data-id=\"a3fa29a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The seat is now back in its correct position and has the desired functionality. The old hinge can still be used after welding and the bench seat is once again stable. &nbsp;&nbsp;<\/p>\n<div>This means that no spare parts are required for this repair &#8211; if they are still available at all, such parts are often very expensive.&nbsp;<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-af69e68\" data-id=\"af69e68\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4531123 elementor-widget elementor-widget-image\" data-id=\"4531123\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_9b.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_9b\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMzMsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzliLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"559\" height=\"480\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_9b.jpg\" class=\"attachment-large size-large wp-image-25233\" alt=\"The repaired seat hinge of a BMW R100S\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_9b.jpg 559w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_9b-300x258.jpg 300w\" sizes=\"(max-width: 559px) 100vw, 559px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e20badb elementor-widget elementor-widget-image\" data-id=\"e20badb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMzYsInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzExYi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b-1024x768.jpg\" class=\"attachment-large size-large wp-image-25236\" alt=\"The repaired seat of a BMW R100S\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b-1024x768.jpg 1024w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b-300x225.jpg 300w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b-768x576.jpg 768w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_11b.jpg 1086w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-940dc9f elementor-widget elementor-widget-image\" data-id=\"940dc9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_12b.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Hinge_seat_BMW_R100_12b\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjUyMzksInVybCI6Imh0dHBzOlwvXC93d3cubGFtcGVydC5pbmZvXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNlwvU2NoYXJuaWVyX1NpdHpiYW5rX0JNV19SMTAwXzEyYi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"704\" height=\"633\" src=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_12b.jpg\" class=\"attachment-large size-large wp-image-25239\" alt=\"A 47 year old BMW R100S\" srcset=\"https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_12b.jpg 704w, https:\/\/www.lampert.info\/wp-content\/uploads\/2025\/06\/Scharnier_Sitzbank_BMW_R100_12b-300x270.jpg 300w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-c053a2b elementor-widget elementor-widget-spacer\" data-id=\"c053a2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","class_list":["post-25259","tutorial","type-tutorial","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Welding the seat bench hinge - Motorcycle | Lampert<\/title>\n<meta name=\"description\" content=\"Tutorial: Welding and repairing a broken hinge on a motorcycle seat - distortion-free and precise with the Lampert Micro Arc Welder.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lampert.info\/en\/tutorials\/industry-seat-repair\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Welding the seat bench hinge - Motorcycle | Lampert\" \/>\n<meta property=\"og:description\" content=\"Tutorial: Welding and repairing a broken hinge on a motorcycle seat - distortion-free and precise with the Lampert Micro Arc Welder.\" \/>\n<meta property=\"og:url\" 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