Precision machining should pay attention to the density of the material

At present, there is a surplus of professional talents in mechanical manufacturing. Ten years ago, that is, in the 1990s, this major was very popular, and since that time, colleges and universities have expanded their enrollment in this industry, and many schools have set up this major. Then in the new century, with the development of electronic computers, digital automatic technology, network technology and automatic control, process assembly, the machining and manufacturing industry has gradually been invaded by other professions.

In addition, after China's accession to the WTO, the original Chinese manufacturing operations can not be rotten, after entering the WTO in the face of Germany and other European and American and Japanese production industry under the impact, vulnerable. For the material hardness requirements, for some occasions, the higher the hardness of the material, the better, but limited to the hardness requirements of the processing machine parts, the processed material can not be too hard, if it is harder than the machine parts can not be processed.

Before processing must pay attention to the density of the material, if the density is too large, equivalent to the hardness is also very large, and if the hardness exceeds the hardness of the machine parts (lathe tool), it can not be processed, not only will damage the parts, the higher the hardness of the material is the better, but is limited to the hardness requirements of the processing machine parts, the processed material can not be too hard, if it is harder than the machine parts can not be processed. Machining of small or very small operating sizes.

The overall size is less than 3 mm, and the processing technology with little or no cutting is a fine machining. It is widely used in aerospace, precision instruments, biomedicine and so on. For regular manufacturers, when they produce auto parts, the requirements for the process are relatively high, so if the staff process is poor, there will be burrs or cracks, then this product must be fake and shoddy products.

If you want to buy products produced by regular manufacturers, then you must first see whether their logo is complete, to ensure that the auto parts you buy are produced by regular manufacturers, if there is no complete logo, then you must not buy. It is one of the important components of each unit of the car as a whole and occupies a large proportion in the market.