一、问题的提出 在机械设备零部件的维修领域里,虽然常用的维修方法很多,如堆焊、熟喷涂焊、等离子喷涂、普通电镀、流镀、刷镀等,但这些方法各有其优、缺点,满足不了机械设备零部件在设计、使用和维修中的高效率、低成本、长寿命的要求。例如,一根长约1.5m有13个轴肩的曲轴,轴径为100mm, First, the problem raised In the field of mechanical parts maintenance, although many commonly used methods of maintenance, such as surfacing, cooked spray coating, plasma spraying, plating, flow plating, brush plating, but these methods have their advantages , Shortcomings, can not meet the mechanical equipment parts in the design, use and maintenance of high efficiency, low cost, long life requirements. For example, a length of about 1.5m crankshaft with 13 shoulders, shaft diameter of 100mm,