For precision parts, processing is very strict, processing processes such as undercutting, out of the tool. For the size of specific requirements, precision requirements, such as 1mm plus or minus how many μm, etc., if the size of the wrong too much will become scrap, then it is the same as having to process again, time-consuming and labor-intensive, and sometimes even prompted the destruction of all processing raw materials, which led to the cost of raising, in addition, the parts are no doubt can not be used.
For precision parts processing is mainly dimensional requirements, such as the diameter of the cylinder is how much, there are strict requirements, plus or minus the difference in the requirements of the requirements within the scope of the standard parts, otherwise all failed parts; size also has specific strict requirements, plus or minus the difference as required, for example, an embedded cylinder (take very simple basic parts as an example), if the diameter is very large, beyond the tolerance range of the difference, it will lead to, can not be inserted into the situation, if the specific diameter is very small, beyond the tolerance negative low limit, it will lead to put in very loose, not solid problems. It will lead to the situation that can not be inserted, if the specific diameter is very small, beyond the negative low limit of the tolerance margin, it will lead to put in very loose, not solid problems. This is all substandard products, or the cylindrical length is too long or too short, more than the tolerance range, all failed goods, are required to abolish, or again processing, which will certainly lead to increased costs.
Precision parts processing requirements is in fact the main size problem, must be strictly in accordance with another plus drawings for processing, processing out of the specific size is undoubtedly not easy and drawings based on theoretical size of the same, only, only processing size within the tolerance range of the difference is all up to standard parts, therefore, the requirements of precision parts processing is in strict accordance with the basic theoretical size for processing. The next is the excellent precision parts processing machinery and equipment and testing instruments, excellent production equipment to promote the processing of precision parts in the case of more simple, high precision, the actual effect is stronger. Testing equipment can test out the parts that do not meet the requirements, so that all the goods sent to customers really meet the requirements.
