Set the groove on the part. First, in order to facilitate the subsequent processing, such as lathe turning thread undercut, grinding over-traveling groove, etc.; The second is to ensure the accuracy of the axial positioning of the parts duri....
Stainless steel parts tapping is much more difficult than tapping on common steel. Frequently, due to the large torque, the tap is “killed” in the screw hole, the tooth is broken or broken, the surface of the thread is not smooth, the groove is gr....
The eight elements that affect the properties of casting aluminium alloys are as follows: Metal elements such as vanadium, calcium, lead, tin, bismuth, antimony, beryllium and sodium. Due to the different use of finished aluminium coil, the....
Chapter One Parts Introduction Parts analysis description 1. Parts shape and general requirements As shown in Figure 1-1, the material is stainless steel, the material thickness is 0.5mm, and the dimensional accuracy of the workpiece must m....
In this paper, through the analysis of a simple base part structure designed by ourselves, and programming, drilling, milling and other numerical control machining, it can better meet the actual precision requirements and improve the proces....
1.Turning slender shaft geometry accuracy and surface quality requirements are high. Conventional processing methods are used to clamp the workpiece between the main shaft and the tailstock. There is no flexibility at both ends. Under the influence of....
With the rapid development of aerospace, hydraulic, communications, micro-electronics, medical equipment and other industries. The Turning-Milling composite processing of many small precision composite parts with high precision, multi-batch....
Precision casting is a special casting. Parts obtained by this method generally do not need to be machined. Such as investment casting, pressure casting and so on. One of the cast materials is: aluminum, stainless steel, titanium, titanium....
The shape and size of the car door glass lifter housing parts. As shown in Figure 8.2.1, The material is 08 steel plate, plate thickness 1.5mm, mass production. Stamping production, it requires the preparation of a stamping process. 8.2.1 P....
The wire threaded sleeve is a new type of threaded fastener, which is divided into two types: ordinary steel threaded screw sleeve and locking type steel threaded screw sleeve. It is a spring-like internal and external thread concentric body....