Resistance Welding Articles

Results: 12

	Don't forget the fixturing : Consistent fixturing ensures consistent robotic welding By: Bill Morgan If an image is not displayed, click the hyperlinked figure number to view it. Specifying and purchasing a robotic welding system can be a... Publish date: August 1, 2009
	Welding fasteners: Spot or projection? : Resistance spot welding offers flexibility, projection welding optimal quality By: Rich Bryda and Ron Foreman Both spot and projection weld fasteners have their place. Spot welding fasteners resistance-weld directly to a sheet with either a rocker-arm... Publish date: February 24, 2009
	Resistance-weld more for less : Best practices prolong electrode life By: James L. Dillard This multigun resistance welding system is designed for automotive exhaust systems. Resistance welding often is viewed as a process shrouded... Publish date: May 13, 2008
	Respecting your resistance welder : Avoiding downtime with preventive maintenance practices By: Tom Snow Figure 1 The secondary circuit of this resistance welding machine that arced out because of loose bolts had to be machined. Resistance... Publish date: March 11, 2008
	Projection welding for nut and bolt attachment : Competing or complementary joining methods? By: John Larsson Figure 1 Weld Nuts Studied A modern car body contains some 300 welded and punched fasteners, such as bolts, nuts, and studs. The quality of... Publish date: February 12, 2008
	Mode of least resistance : Understanding control modes in resistance welding By: Girish Kelkar, Ph.D Figure 1 This schematic of a weld setup shows top and bottom electrodes (red) holding parts to be welded. Rw is the total of all resistances... Publish date: August 8, 2007
	Why use multiple-impulse resistance welding? : An explanation of the process, its heat balance mechanism By: Girish P. Kelkar, Ph.D., Contributing Writer The nickel cross-wire weld on the left was made with single-impulse resistance welding. Material squeezed out from the weld is attached to... Publish date: November 9, 2004
	Revving up weld quality : Ford Development Center uses RW system to reduce costs, improve quality Before introducing new resistance welding systems, Ford Motor Company's New Model Product Development Center was cluttered and dark, and it... Publish date: June 8, 2004
	Exercising control : Resistance welding companies strive to boost process reliability, repeatability By: Lincoln Brunner, Contributing Writer This three-phase, mid-frequency inverter is a dual-gun projection welding machine with a pneumatically operated lift table for the... Publish date: November 20, 2003
	Examining electric resistance weld nuggets in tube and pipe : Using the microscope to study weld characteristics By: Lew Warren, Contributing Writer An in-depth examination of electric resistance welding (ERW) weld nuggets as a quality control step in the manufacturing of high-strength tube and... Publish date: April 24, 2001
	What you don't know about spot welding : Some lesser-known uses of resistance welding equipment By: Roger B. Hirsch, Contributing Writer To most manufacturers, spot welding is the most economical way to join two pieces of sheet metal. While joining sheet metal is the most common use... Publish date: April 24, 2001
	Electric resistance welding at a glance : Process, power supply, and weld roll basics By: Gerald Weimer and Ray Cagganello, Contributing Writers Figure 1 Object Several electric resistance welding (ERW) processes are available for tube and pipe production. While each process has... Publish date: June 13, 2002

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