Gearbox shell machining process design《Manufacturing Engineering and Technology—Machining》Mechanical Industry Press In March 2004, version 1 p560—564（Serope kalpakjian） （Steven R.Schmid）AbstractGearbox shell is a more complex structure of spare parts box, its high precision,complex process, and the processing quality will affect the overall performanceengine, so it has become the engine manufacturer's focus parts one.Machiningprocess planning must guarantee the machining quality of parts, to meet thetechnical requirements stipulated in drawings, at the same time should also havehigh productivity and efficiency. Therefore, machining process planning design is animportant work, requires designers must have a rich experience in productionpractice and wide range of mechanical manufacturing technology basic theoryknowledge. In the specified procedure, should according to the production of partsand the existing equipment conditions, taking the processing quality into account,productivity and economy requirements, after repeated analysis and comparison, todetermine the optimal or the best solution.1.Technical Characteristics of the gearbox shellThe gearbox shell process features are: the structure of complex shape;processing plane, more than holes; uneven wall thickness and stiffness is low;processing of high precision typical of box-type processing part. The main processingof the surface of cylinder block top surface, the main bearing side, cylinder bore, themain and camshaft bearing bore holes and so on, they will directly affect themachining accuracy of the engine assembly precision and performance, mainly relyon precision equipment, industrial fixtures reliability and processing technology toensure the reasonableness.2.The gearbox shell...
