Content tagged with "finite-element-analysis"

Results: 8

Article

April 15, 2008

Lubrication and galling in stamping of galvanized AHSS Figure 1 Click to view image larger This B-pillar simulation model shows the geometries of the tool and the initial sheet blank. Editor's Note: This article is Part III of a three-part series discussing a study of lubrication and galling in forming of zinc-coated advanced high-strength... Read more...

Article

January 15, 2008

Using FEM to compare tube forming processes Three roll forming processes typically used in tube and pipe production are single-radius forming (top), edge forming (middle), and partial-step forming (bottom). FEA shows the displacement of material in each forming pass. In tube manufacturing, product quality is a major concern,... Read more...

Article

December 11, 2007

Dissecting defects - Part III Real-time Process Control Figure 1 A commercially available optical measuring system can be used to obtain data on the deformation of a stamped component. Variations in incoming sheet material quality, tool temperatures, press and tool deflection, and lubricant performance result in... Read more...

Article

December 11, 2007

Dissecting defects Part I categorizes defect types and discusses the factors that affect formed part quality; Part II covers various destructive and nondestructive tests for evaluating incoming material; and Part III is an introduction to process monitoring systems. Read more...

Article

November 6, 2007

Dissecting defects - Part II Two major types of variation in incoming sheet coil are material properties and coil thickness. Various tests, both destructive and nondestructive, are used to determine these variations. Tensile Testing Figure 1 At top is a cross-sectional schematic of a biaxial bulge test set... Read more...

Article

October 9, 2007

Dissecting defects - Part I Figure 1 Many quality defects can occur in stamping. Types of Quality Defects Two main types of defects typically occur in stamped automotive body components (see Figure 1 ): Surface defects, such as cracks and necking Form defects, such as fall-in, wrinkling, and marking... Read more...

Article

March 7, 2006

The heat is off Figure 1 The heat exchanger shell requires forming numerous complex shapes in a short cycle time. The process of developing a hydroformed part is similar in many ways to developing a stamping. Factors that must be considered include part geometry (the amount of... Read more...

Article

October 24, 2002

Taking advantage of simulation technology Figure 1 Object Tremendous advancements have been made in sheet metal stamping during the last decade. Even during my short 22 years of tooling experience, I have seen dies designed with a pencil and a drafting board; with a computer; with solid modeling; and with real-world 3-D methods.... Read more...

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