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激光在工业、农业、医学等很多领域有广泛的用途,在建筑施工中也已得到应用,如隧道掘进和烟囱滑模施工中激光导向,推土机大面积作业及平整精度的激光导向等。本文仅阐述激光在机械维修领域中的应用。一、焊接与常规的焊接相比,激光焊接有如下特点:1.工艺简单。激光焊接是一种不需中间传递环节的焊接工艺,如不需焊枪等机具,所以工艺简单,易于实现自动化作业;2.能量密度高,焊接质量好。电焊的能量密度为10~4W/cm~2,激光焊为10~9W/cm~2。所以可将难熔的耐磨材料堆焊在磨损件上。当
Lasers have a wide range of applications in many fields such as industry, agriculture, and medicine, and have also been used in building construction such as laser guidance in tunneling and chimney slipform construction, large-area operation of bulldozers, and laser guidance for leveling accuracy. This article only describes the application of laser in the field of mechanical maintenance. First, welding Compared with the conventional welding, laser welding has the following characteristics: 1. The process is simple. Laser welding is a welding process that does not require intermediate transfer links. If no welding gun and other tools are required, the process is simple and easy to realize automation. 2. High energy density and good welding quality. The welding energy density is 10~4W/cm~2, and the laser welding is 10~9W/cm~2. So it is possible to weld refractory and wear-resistant materials on the wear parts. when