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Before precision processing of non-standard parts, you must understand what non-standard parts are
Time:2020-3-17 10:42:28  Views:1777
We know that precision machining can be divided into standard part processing and non-standard part processing according to the processing object. Relatively speaking, standard part processing is relatively easy, and non-standard part processing is relatively difficult. Many people do not Differentiate between what is a standard part and what is a non-standard part, then we will introduce what is called a non-standard part by our chief engineer:
First of all, we know that non-standard parts are proposed relative to standard parts, so we need to know what is called standard parts before understanding non-standard parts. Standard parts refer to commonly used parts, such as threaded parts, rolling bearings, etc., which have been completely standardized in all aspects such as structure, size, drawing, and marking. In a broad sense, it includes standardized fasteners, links, transmissions, seals, hydraulic components, pneumatic components, bearings, springs and other mechanical parts. Narrow sense includes only standardized fasteners. The standard parts commonly known in China are short for standard fasteners, which is a narrow concept, but the existence of a broad concept cannot be ruled out. In addition, there are industry standard parts, such as automotive standard parts, mold standard parts, etc., which are also broad standard parts.
Non-standard parts processing professionals explain that the country has not set strict standard specifications, and there are no other parameters except for other accessories that are freely controlled by the enterprise. There are many types of non-standard parts, and there is currently no standard classification. The general classification is as follows:
Non-standard metal parts:
The drawings are provided by the customer, and the manufacturer uses the equipment to make the corresponding products according to the drawings. Usually, the molds are mostly, the tolerance requirements, and the finish are specified by the customer. There is no certain paradigm. Products from casting to finishing require corresponding quality control, with complex procedures and great variability, and generally cost more than standard parts.
Non-metallic non-standard parts:
It is the processing of some non-metal materials. Such as plastic, wood, stone, etc. In recent years, the injection molding industry, the development of plastic molds has become increasingly sophisticated, and the use of curved surface design and programming numerical control has increased the cost and tolerance level of non-standard machining.
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