Defects In Steel Sheets

Surface defects surface defects is an important issue in sheet metal stamping as the stamping process affects surface appearance and thus influences surface quality.

Defects in steel sheets.

Bare spots galvanized coated bare spots result when coating fails to adhere leaving the substrate exposed. Choosing the wrong size blank under estimating the number of forming tools required or encountering an unexpected wrinkle or split can be very costly if only discovered during first physical tool tryout. This means the length of your sheet metal can be over a mile long. Defects in continuous cast steel products.

It isn t practical to handle this when it s flat so it is coiled as it s produced. They can be caused by carbon smut or grease deposits on the strip being coated or by roll pickup of foreign material. The weight doesn t change. The annealed steel sheet surface exhibits an irregular or island like black brown pattern.

A great amount of time is therefore spent during the product development process on the optimization of surface defects particularly surface lows during tryout. The most common sheet metal stamping defects are also the easiest to predict using advanced simulation software such as autoform. When sheet metal is rolled the width doesn t change but since the thickness is dramatically reduced the length must increase by a similar percentage.