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| 摘要: |
| 介绍了GM－3450系列工模具修补机的原理及采用合金粉末或焊丝对模具的棱边磨损，内腔划沟等典型损伤进行微区脉冲焊补修复的技术特性，分析了焊补层与基体间的结构特点，扩散情况及热影响区，证明微区脉冲点焊是一种操作简便，性能可靠的模具修补新技术。 |
| 关键词: 模具零件修复 脉冲点焊 微区焊接 |
| DOI： |
| 分类号:TG76 TG453.9 |
| 基金项目: |
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| Application of Micro-area Pulse Spot Welding Technology to Repairing Dies and Moulds |
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HU Zhong-xiang YANG Jun-wei LI qiang
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| Abstract: |
| The principle of GM-3450 type repairing machine for tools and dies and the technical specifications of repaired moulds worn at the edges and scratched on the inner surface by micro-area pulse spot welding technology were introduced in this paper. The bonding and diffusion characteristics at the interface of welding layer and substrate, and the heat-affected zone were analysed as well. It was proved that the micro-area pulse spot welding is an easily-operated and reliable new technology for repairing dies and moulds. |
| Key words: the repairing of dies & moulds,pulse spot welding,micro-area pulse welding |
