苏联机器制造业先进生产者代表团团员、锻工科瓦连柯曾在我厂锻工车间连续作了三次技术表演。他的卓越的技术引起了全车间工人同志的赞赏,并且给他们以很大的启发。科瓦连柯的表演共有四部分。其中工具锻造部分的材料,本刊第七期已经有了介绍,这儿不打算再重复。其他部分的材料,现在分别介绍如下。一、切料方法1.切扁方料我厂的方法:先用刴刀切开料厚的3/4以上,翻转180°,再用克刀一锤打 Soviet Union, a member of the advanced producer delegation of the machine manufacturing industry, Forco Kovalenko has made three technical performances successively in our forging workshop. His superior technology has aroused the appreciation of all the workshop workers comrades, and give them a great inspiration. Kovalenko’s performance has four parts. One of the tools forging part of the material, the seventh issue has been introduced, not here to repeat. The other parts of the material, are now introduced as follows. First, the cutting method 1 cut flat side of the material I plant method: first cut with a trowel thick material 3/4 or more, flip 180 °, then a knife and a hammer