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摩擦焊是一种金属固相热压焊方法,即把两种焊件的结合面作相对高速运动,借助于摩擦热使接触部分达到塑性状态,再经加压而连接成一体的一种工艺方法。 一、特点及效果 摩擦焊新技术具有一系列突出优点: (1)焊接质量高、稳定、可靠、焊件尺寸精度高。杭州刀具厂,钻头采用摩擦焊其废品率在1‰以内。英国某汽车厂对200万件汽车后桥进行摩擦焊无一废品。原西德生产汽车零件排气阀用摩擦焊代替闪光焊,其废品率由原来的1.4％降到0.04％～0.01％。焊件的加工精度高,如长度可控制在±0.2mm以内,同轴度小于0.2mm。由于热影响区小,不会产生通常熔化焊的缺陷,所以产品质量稳定。
Friction welding is a metal solid-phase hot-press welding method, that is, the two welding parts of the joint surface for relatively high-speed movement, with the help of frictional heat to reach the plastic part of the contact state, and then pressurized into a single process method. First, the characteristics and results Friction welding new technology has a series of outstanding advantages: (1) high quality welding, stable and reliable, high precision welding size. Hangzhou tool factory, the friction of the drill bit of its rejection rate of less than 1 ‰. A car factory in the United Kingdom 2 million after the friction welding of the rear axle without a scrap. The original West German automotive parts exhaust valve friction welding instead of flash welding, the rejection rate from the original 1.4% to 0.04% ~ 0.01%. Weldments of high precision machining, such as length can be controlled within ± 0.2mm, coaxial less than 0.2mm. Due to the small heat-affected zone, will not produce the usual melting defects, so the product quality and stability.