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发明公开
CN109175684A 一种镍基合金材料与不锈钢材料激光焊接工艺 无效 - 驳回

一种镍基合金材料与不锈钢材料激光焊接工艺
摘要：
本发明公开了一种镍基合金材料与不锈钢材料激光焊接工艺，它属于激光焊接领域，该工艺步骤如下：(1)、将阀板和稳定块定位好，焊接前需要对上方的稳定块施加压力；(2)、利用激光焊接设备进行焊接，激光功率800-3000W，焊接速度45-60mm/s,光斑为0.2mm；(3)、利用声音信号采集传感器采集金属蒸汽和等离子体从焊缝中喷射出来的具有特定频率段的可听声信号；(4)、焊接过程中，焊接区通入惰性气体保护，惰性气体采用氦气，流量控制在30-46sccm，该工艺能够充分发挥激光焊接高效高度的优势，同时保证镍基高温合金与不锈钢激光焊接的质量。
摘要（英）：

The invention discloses a nickel base alloy material and stainless steel material laser welding process, and belongs to the field of laser welding. The nickel base alloy material and stainless steel material laser welding process comprises the following steps that (1), a valve plate and a stable block are positioned well, and pressure is applied to the above stable block before welding; (2), welding is carried out by using laser welding equipment, the laser power is 800-3000W, the welding speed is 45-60mm/s, and a light spot is 0.2mm; (3), an audible sound signal which has a specific frequencyband and is ejected from a welding line by metal vapor and plasma is collected by using an acoustical signal collecting sensor; and (4), in the welding process, inert gas is led into a welding area for protection, helium is adopted in the inert gas, and the flow is controlled at 30-46sccm. The nickel base alloy material and stainless steel material laser welding process can give full play to theadvantage of high efficiency of the laser welding, and ensures the quality of nickel base superalloy and stainless steel material laser welding at the same time.

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