Defects In Steel Sheets

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.

Defects in steel sheets.

The weight doesn t change. Bare spots galvanized coated bare spots result when coating fails to adhere leaving the substrate exposed. Defects of the continuous cast steel products are formed due to several factors which include material related factors casting speeds and temperatures mould oscillation casting powder segregation coefficient of solute elements phase transformation and mechanical and thermal stresses. 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 continuous cast steel products. Here are some common flat roll steel defects we watch out for. This means the length of your sheet metal can be over a mile long. 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 annealed steel sheet surface exhibits an irregular or island like black brown pattern. The most common sheet metal stamping defects are also the easiest to predict using advanced simulation software such as autoform. They can be caused by carbon smut or grease deposits on the strip being coated or by roll pickup of foreign material.