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摩擦焊较之闪光焊虽然不要求对管端外壁进行清理,但由于摩擦时间短、烧化量小,因而管子端面的粗糙度、不平度和垂直度对焊接质量影响很大,所以对管端制备的要求较高,只有管端平整而垂直,才能使摩擦过程中,热力沿径向、轴向和元周分布均匀,顶锻时变形一致,接头质量优良。一、摩擦与进给摩擦焊是热压焊的一种,焊接质量主要取决于加热与加压和摩擦过程,即是焊接接头的加热过程。在摩擦过程中,升温速度与热力的分布,主要取
Friction welding than flash welding although not required to clean the outer wall of the pipe end, but due to the short friction time, a small amount of burning, so the pipe end surface roughness, roughness and verticality of the welding quality is greatly affected, so the pipe end preparation The requirements are high, only the pipe end is flat and vertical, in order to make the friction process, the heat distribution along the radial, axial and Yuan Zhou evenly, when the deformation of the same forging, joint quality. First, the friction and feed friction welding is a kind of heat pressure welding, welding quality depends mainly on the heating and pressure and friction process, that is, the heating process of welded joints. In the friction process, the heating rate and heat distribution, the main take