Nadcap accredited resistance spot & seam welding.
Providing Nadcap accredited resistance welding services to our national and international customers.
Lynn Welding provides resistance 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.
the most widely used form of resistance welding. This type of welding is done with electrodes which are held essentially stationary while the weld is being made. We are NADCAP accredited for the resistance spot welding procedure.Spot 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.
the process of making a series of overlapping air and liquid tight welds by using two rotating wheel electrodes without opening the electrodes between spots. Our NADCAP certification also allows us to perform this procedure for the aerospace and defense industries.Seam Welding
Lynn Welding has over 12 Capacitive Discharge resistance welding machines in its micro-resistance welding department. Numerous welding heads and handheld units are in stock so that most types of welds can be performed at any time.Micro-Resistance Welding
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.
“United Technologies Aerospace systems and the Management of this Program want to express a sincere thank you for your focused efforts to support our hardware needs. Working with Lynn Welding has been very rewarding and we really appreciate everything you have done for us."
Below are the Resistance welding approvals Lynn Welding currently holds, for more of our accreditations and approvals please visit our certifications page.
- CSMP039 Fusion weld-aluminum
- CSMP039 Fusion weld-steel
- CSMP039 Fusion weld-nickel alloys
- CSMP039 Fusion weld-titanium
- 36F (Welding: Resistance - Aluminum Alloy, MIL-W-6858, AMS-W-6858)
- 36G (Welding: Resistance - Magnesium Alloy, MIL-W-6858, AMS-W-6858)
- 36H (Welding: Resistance - Nickel and Cobalt Alloy, MIL-W-6858, AMS-W-6858)
- 36I (Welding: Resistance - Steel Alloy, MIL-W-6858, AMS-W-6858)
- 36J (Welding: Resistance - Titanium Alloy, MIL-W-6858, AMS-W-6858)
- 36K (Welding: Seam, MIL-W-6858, AMS-W-6858)
- See more Beechcraft approvals
- HS 3944 (Resistance Welding, HS 3944)
- HS 91 (Resistance Welding, HS 91)
- AWS D17.2 (Resistance Welding Certification for Aerospace)
- AMS-W-6858 (Resistance Welding of Aluminum, Magnesium, Nickel, & Titanium, Welding, Spot and Seam)
- Mil-W-6858 (Mil-Spec Resistance Welding)
- See more Collins Aerospace approvals