摘要
针对冷冲模具的工作条件、失效形式和性能要求,研制出CrMoWVTi合金系堆焊金属,并把它分别配制成钨极氩弧焊用药芯焊丝和焊条两种堆焊材料.试验表明,研制的材料硬度HRC≥60,耐磨性与GCr15相当,抗裂性与热作模具材料接近,是一种适合于冷冲模具堆焊修复与堆焊制造的理想材料.本文还研制了一套冷冲模堆焊工艺.采用研制的堆焊材料及相匹配的堆焊工艺成功地堆焊制造与堆焊修复了一批冷冲模具,经工况运行表明效果良好.
In the light of the working condition, the failure features and the required performance of cold punching dies, this paper has developed a kind of surfacing metal formula of CrMoWVTi alloy series. As a result, surfacing electrodes for SMAW process and flux - cored wires for TIG welding process have been formulated respectively. The welding material obtained in this research work is appropriate to surfacing repair and manufacture of punching dies because of its following features: First, its HRC hardness is not less than 60. Second, its wear resistance can match steel GCr15. Finally, its weldability, especially resistance to cracking, is close to surfacing materials of thermal forging dies. In addition, the surfacing process has been investigated in this paper. By means of this new kind of welding material and the corresponding surfacing process, some cold punching dies have been repaired and manufactured which function well during practical application.
出处
《焊接》
1999年第12期24-28,共5页
Welding & Joining
关键词
堆焊材料
堆焊工艺
冲模
焊接
堆焊
cold punch die. surfacing material, surfacing process
