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Resistance Welding

Nadcap accredited resistance spot & seam welding.

Providing Nadcap-accredited resistance spot & seam welding services to our national and international customers.

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 Lynn Welding provides resistance spot welding and resistance seam welding services to many of its customers. Our team uses SCIAKY welders which are considered the best in the world for maintaining the strictest tolerances required by the aerospace industry. Our SCIAKY welders are capable of welding aluminum, Stainless steel, Titanium, Inconel and most other metals while maintaining the proper conditions to ensure a quality weld. Our resistance welding operations are closely monitored by our internal quality department which ensures that all of the resistance welding functions fall within the guidelines set forth by NADCAP (National Aerospace and Defense Contractors Accreditation Program). 

  • Lynn Welding is AWS D17.2 Certified, view our other aerospace welding approvals by company using the links in the footer. 

Resistance welding is the process of joining two or more pieces of metal by the application of heat, electricity, and pressure. Resistance welding embraces the branch of welding art in which the welding heat is generated by the resistance of the parts being welded and the passage of an electric current. It differs from other forms of welding in that no extraneous materials such as fluxes, filler rods, etc. are used; therefore metallography of the weld is not complicated by the addition of these materials. Resistance welding further differs from the fusion welding process, by utilizing the application of mechanical pressure to forge the heated parts together. The effect of the pressure is to refine the grain structure, thus producing a weld with physical properties in most cases equal to the parent material, and sometimes even superior.

Stitch Welding
Stitch Welding

the process of using the spot weld configuration but overlapping the actual weld nuggets over the length of the 2 pieces of metal being joined. This type of weld can produce the results of a seam weld in an area where two rotating wheel electrodes will not fit.

Lynn Welding's

Metallographic laboratory

Lynn Welding’s metallographic laboratory is NACAP approved, Boeing Approved and Pratt and Whitney LCS approved. The laboratory undergoes regular internal and external audits to maintain its approvals and stay fully compliant to all customer and government requirements.

Our metallographic laboratory is furnished with highly specialized equipment that allows for metallurgical evaluation of resistance welded coupons. The facility has two identical stations that contain grinding, polishing, etching and evaluation capabilities.

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Tell us about your next Resistance Welding project

To learn more about our resistance spot welding & resistance seam welding capabilities or to receive a quote please submit a request below. All requests for quotes will be fulfilled within 24 business hours!