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混合添加和减去制造方法使用脉冲弧等离子体

Xiaoming Duan¹, Ruirui Cui¹, Haiou Yang²

¹Department of Mechanical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China.

Materials (Basel, Switzerland)

|July 14, 2023

概括

一种新的混合添加和减去制造 (PAP-HASM) 工艺集成了脉冲弧等离子电线弧添加制造和干电放电加工削. 这种方法可以在316L不钢中实现出色的拉伸性能和提高表面粗度,而不会受到重层的有害影响.

科学领域:

材料科学与工程材料科学与工程
制造业制造技术制造技术
增材制造和减法制造增材制造和减法制造

背景情况:

集成添加和减去制造工艺对于先进的组件制造至关重要.
脉冲弧等离子体 (PAP) 为添加和减去技术提供了一种多功能热源.
干燥加工流程是理想的,以消除工作流体和相关的环境问题.

研究的目的:

开发和验证一种新的混合添加和减去制造 (PAP-HASM) 方法.
研究脉冲弧等离子电线弧增材制造 (PAP-WAAM) 和干电放电加工 (EDM) 的整合.
评估从干式EDM削中重新造层对制造组件的机械性能和表面质量的影响.

主要方法:

通过将PAP-WAAM (添加) 和干式EDM削 (减去) 结合起来,开发了PAP-HASM工艺.
使用灵活的脉冲弧等离子电源和可互换的工具电极进行工艺切换.
使用开发的PAP-HASM方法制造和测试316L不钢样品.

主要成果:

PAP-HASM标本显示出出色的拉伸性能,与PAP-WAAM标本相美 (UTS:539 ± 8MPa,延长:46 ± 4%).
在干式EDM削过程中形成的再造层并没有显著降低316L不钢部件的机械性能.
与仅使用 PAP-WAAM 制造的组件相比,由 PAP-HASM 制造的组件表现出明显改善的表面粗度.

结论:

开发的PAP-HASM工艺有效地整合了使用脉冲弧等离子体的添加和减法制造.
混合方法可以生产具有高拉伸性能和优质表面加工的组件.
PAP-HASM是一种有前途的干式加工技术,用于制造高性能元件,而不会受到重新造层的不利影响.

关键词:

316L 316L 是一个 316L 的类型.电气放电机械加工电气放电机械混合添加剂和减法制造混合添加剂和减法制造强度强度强度强度强度强度强度强度强度强度强度强度强表面的粗度表面的粗度

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