parts processing: prevent scratch forging defects

Die forgings defect prevention countermeasures to scratch are:

1) caused by sticking later to scratch, reduce pouring temperature, temperature control module, coating and coated adhesive, repair welding mode is loaded. Along the direction of product surface mold strained trace called scratches.

2) no scratch scratch, in certain parts of the mould part corresponding increase apply paint,

3) in a fixed position to scratch, mould, repair and pressure revised draft marks,

Forging defects reasons: scratch

1) pouring temperature and high temperature, coating or inadequate pouring molten metal flow washout for mould, causing severe loaded with bore sticky metal mould parts, stripping will scratch, even rent.

2) mold draft is too small, or surface is rough surface bore to disable demoulding difficult cause scratches parts,