Forging defects of mould cavity non-saturate,crack,pucker and shearing edge avulsion,etc.on the astrictive clamps and operating scissors are studied by means of appearance and metallography.

• 采用外观和金相方法,对止血钳和手术剪锻坯出现的型腔填充不满、裂纹、重皮和切边撕裂等缺陷进行分析。