‘壳盖’薄壁铝合金件加工工艺(国外英文资料).docVIP

‘壳盖’薄壁铝合金件加工工艺(国外英文资料)Shell cover thin-walled aluminum alloy piece processing technology analysisChina aviation industry group company aviation lifesaving equipment co., LTD. (hubei xiangyang 441002) yuan kaiboShell cover parts is a thin-walled aluminum alloy parts, its shape and size as shown in figure 1. Is the main characteristic of thin wall parts, because is aluminium alloy, its strength is poor, easy to deformation, when processing to efficient processing of qualified parts, prepare good process route in the processing, make accurate clamping and positioning, it is crucial, and at the same time to control the cutting deformation of parts produced.Figure 1 shellNote: no round Angle, convex R1.8 mm, concave R1mm, no wall thickness 0.8 mm.One, process analysisConsidering the parts and appearance are all within the circle shape, its main processing method process is complete, a car car number process for processing, appearance in two steps, respectively. After processing the first process, the problem of filling and positioning in the second process is taken into consideration. It is necessary to be able to accurately clip and position, but also make the process of the second process easy. After several times of analysis and process routes of combination fixture structure design, determine the first form surface machining, and pointing out the position of the clamping position on the surface of the port, then the shape processing.Second, the process lineAfter the inside of the machining parts, the lid needs to be installed on an auxiliary fixture to process the second process, as shown in figure 2.(a) the first procedure (b) the second procedureFigure 2 shell cover process diagramProcessing of the first processIn the first process, the shell cover completes the processed content shown in figure 2 (a), and is careful to maintain the coaxial degree of the various holes and M64 x 0.75 screw holes. Because of the thin wall of the shell, the eccentricity is more easily