1. Please refer to the public number (primary consideration) for the mechanical engineer's home: ( new energy electric vehicle ) 1) The working condition of the parts (vibration, impact, high temperature, low temperature, high speed, high load should be treated with caution); ) restrictions on part size and quality;
3) The importance of the part. (relative importance for overall machine reliability)
2, process requirements: ( old scooter ) 1) blank manufacturing (casting, forging, cutting, cutting);
2) mechanical processing;
3) heat treatment;
4) Surface treatment
3, economic requirements: ( new energy vehicles ) 1) material prices (common round and cold drawn profiles, precision casting, precision forging blanks and processing costs comparison);
2) processing batch and processing costs;
3) Material utilization rate; (such as plate, bar, profile specifications, reasonable use)
4) Replacement (use as much as possible to replace rare materials with relatively expensive materials, such as replacing the copper sleeve with some spheroidal ink in some wear parts, replacing some sets of turning with oil-bearing bearings, and using nylon with a small speed load. Replace steel gears or copper worm gears, etc.).
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