Content tagged with "surface"
Results: 12
Article
April 6, 2004
Titanium—You can weld it!
"Titanium need not be all that hard to weld!" The American Welding Society (AWS) 1 said it, and I agree. Well-done titanium welds look like frozen mercury: shiny and reflective. A couple of basic factors make titanium different from other metals. These unique characteristics, and a lack... Read more...
Article
August 28, 2003
Die geometry for embossing and stretching
Embossing usually refers to the stretching of metal into a shallow depression. Unlike drawing, embossing entails little or no inward metal flow. Some automobile hoods and parts are made using a stretching operation, while others use a combination of drawing and stretching (see Figure 1 ).... Read more...
Article
August 28, 2003
Making plasma cutting easier
For many people, the world of plasma cutting is a complex and daunting place, with a cryptic set of rules that can be mastered only by highly trained technicians after weeks of training. For every change of material or thickness being cut, a long process ensues of resetting gas mixtures,... Read more...
Article
August 28, 2003
Article
August 14, 2003
Toolmaker tricks
This article focuses on a few tricks of the tooling trade that have been used for years. It is very important for toolmakers, troubleshooters, and technicians to make rational data based decisions regarding permanent corrective action. These tricks are intended solely for data gathering purposes... Read more...
Article
March 13, 2002
Article
July 26, 2001
Tool design tips for coated stampings
From time to time designers and manufacturers of progressive or stage tooling are faced with a project involving production of metal stampings that will be post-processed with painting, powder coating, or plating operations. Customer requirements for postprocess finish quality often are... Read more...
Article
June 6, 2001
Protecting surface-sensitive materials in coil processing
In today's world of metal fabricating, reducing the number of steps in the production process is an ever-increasing trend. Fabricators are becoming more efficient by: Feeding production lines with materials that have been slit to the proper finished dimension. Feeding production lines with... Read more...
Article
May 30, 2001
Skelp edge preparation for manufacturing ERW pipe
Achieving a quality weld requires starting with good edges. In manufacturing electric-resistance- welded (ERW) pipe and tube, this is critical. Perfect edges are almost impossible to obtain consistently by rotary side trimming single-width coils or side trimming and slitting master... Read more...
Article
April 24, 2001
Article
April 24, 2001
Predicting the outcomes of laser thermal forming
Applying a laser or any other high-density heat source to the surface of a metal sheet for a short time will distort the metal. If this distortion could be predicted, the laser could be directed so that the sheet metal would form the desired shape. This idea opens up many possibilities,... Read more...
Article
March 5, 2001
The basic elements of tubular hydroforming
Tube hydroforming has been well-known since the 1950s. However, with recent advancements in computer controls and high-pressure hydraulic systems, the process has become a viable method for mass production, especially with the use of internal pressures of up to 6,000 pounds per square inch... Read more...
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