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42CrMo4钢的振动辅助接:优化参数以提高性能和接性

Mihai Alexandru Luca¹, Ionut Claudiu Roata¹, Cătălin Croitoru¹

¹Department of Materials Engineering and Welding, Faculty of Materials Science and Engineering, Transylvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania.

Materials (Basel, Switzerland)

|June 19, 2024

概括

振动辅助接 (VAW) 成功地连接难以接的中碳,低合金钢,没有预热或后加热. 与传统技术相比,这种方法可以提高接质量,降低能耗,缩短操作时间.

科学领域:

材料科学材料科学材料科学
制造业工程制造工程
接技术接技术

背景情况:

中碳,低合金钢具有重要的接挑战,通常需要耗费大量能源的预热和后热过程.
这些钢的传统接方法通常受到低线性能量输入和严格的热管理协议的限制.

研究的目的:

为了研究振动辅助接 (VAW) 在连接42CrMo4钢的有效性,这是一个代表性的中碳,低合金钢.
为了确定振动参数对接质量和机械性能的影响.
评估VAW与传统加热方法相比的能源效率和运营优势.

主要方法:

自动MIG/MAG接与振动表集成,以传递受控制的部件振动.
振动频率的系统变化 (550 Hz至9.5 kHz) 和振荡加速 (a_x, a_y, a_z).
通过宏观/微观分析,微硬度测试和曲试验来评估接质量.

主要成果:

在42CrMo4钢使用VAW而没有预热或后加热的情况下,获得了令人满意的接质量.
振荡加速显著影响接的外观,接宽度和透深度;有效加速超过40m/s2的风险缺陷.
VAW接头表现出可接受的机械性能,硬度与传统加热样品相当或略高.
观察到能耗和运行时间的显著减少.

结论:

振动辅助接是一种可行的,高效的替代方案,用于连接具有挑战性的中碳,低合金钢.
优化振动参数,特别是加速,对于控制接的外观和完整性至关重要.
与传统的预热和后热方法相比,VAW提供了显著的节能和流程简化.

关键词:

这就是为什么VAWVAW是VAWVAW.减少了内部摩擦.机械振动是一种机械振动.减轻压力是一种缓解压力的方法.不传统的技术是一种非传统的技术.振动振动振动是一种振动.在振动辅助接中使用振动辅助接.可接性接性是可以接的.

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