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我厂锻压车间0.5吨汽锤勾贝锤头燕尾损坏,如下图所示。该勾贝为波兰进口40Cr钢,经成分化验测定含碳量为0.42～0.45。为了合理地制订修复工艺方案。我们进行了工艺讨论,将提出的两种方案进行了比较。方案Ⅰ将破断的燕尾块焊到锤头上;①勾贝尺寸和形状保持原状;②焊接工作量较大;③加工量较小;④质量不易保证; 方案Ⅱ锤头上提50mm;重开燕尾,堆焊缺位;①整个勾贝短50mm,行程是否受影响需论证;②焊接工作量少;③加工量较大;④质量完全可以保证;
0.5 ton forging workshop in our factory forging hammer hammer hook dovetail damage, as shown below. The hook shell imported from Poland 40Cr steel, the composition of the test determined that the carbon content of 0.42 ~ 0.45. In order to formulate a reasonable restoration program. We conducted a process discussion and compared the two proposed solutions. Scheme I will be broken to the hammerhead dovetail; ① hook shell size and shape to maintain the status quo; ② larger welding workload; ③ less processing volume; ④ quality is not easy to guarantee; program Ⅱ hammer raised 50mm; re-opened Dovetail, welding, lack of place; ① the entire hook short 50mm, stroke is affected to be demonstrated; ② less welding workload; ③ larger amount of processing; ④ quality can be guaranteed;