Defects In Steel Sheets

The most common sheet metal stamping defects are also the easiest to predict using advanced simulation software such as autoform.

Defects in steel sheets.

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. 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. 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 continuous cast steel products. 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. It isn t practical to handle this when it s flat so it is coiled as it s produced. The shape defect of the steel coil is higher or lower than the one end of the coil and is continuous like a pagoda which appears in the inner outer ring portion of the coil.

The weight doesn t change. Bare spots galvanized coated bare spots result when coating fails to adhere leaving the substrate exposed. The annealed steel sheet surface exhibits an irregular or island like black brown pattern.