The non-standard parts processing professionals elaborate that if the country does not set strict standards and specifications, there is no related parameter regulations, other parts are under the control of the enterprise. There are many kinds of non standard parts, and there is no standard classification at present. The general classification is as follows:
Metal non standard parts:
The drawings are provided by the customer, and the manufacturer swindles the equipment according to the drawings to produce the corresponding products. Usually, there are more molds, yamen runner’s requirements, and the brightness are all in the customer’s regulations, and there is no positive paradigm. Products from forging to finishing need corresponding quality control. The process is complex and variable, and the cost is usually higher than the standard parts.
Non metallic non standard parts:
It is the processing of some non-metallic materials. For example, plastic, wood, stone, etc., in recent years, the development of injection molding industry and plastic mold has been increasingly refined. The quotation of curved surface design and programming numerical control has greatly improved the cost of non-standard processing and the grade of yamen runner.
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