In the field of mechanical processing, in the process of machining precision mechanical parts, not all materials can be processed. Many raw materials have too much hardness, exceeding the hardness of the machined parts, which may damage the machine tool or the workpiece. Therefore, some raw materials are not suitable for precision machining, unless special customized tools are selected.
Among the metal raw materials, one is metal material, the other is non-metal material. For the composition of metal materials, the hardness of stainless steel is the largest, followed by cast iron, copper, and finally aluminum. Ceramics, plastics and other non-metallic materials encountered in machining.
For precision machining parts, the first requirement is the hardness of the material. For some occasions, the higher the hardness of the material, the better. It is only limited to the hardness requirements of machining machine parts. The processed material should not be too hard. If it is harder than the selected tool, it cannot be processed.
Secondly, the soft and hard material is moderate, at least the hardness of the cutting tool should be lower. At the same time, it also depends on the conditions of the processing equipment itself and whether the reasonable processing equipment is selected.
In short, precision machining has certain requirements for raw materials, not all materials are suitable for precision machining, such as too soft or too hard materials, to choose reasonable processing equipment and special tools to complete. After understanding the processing requirements, the most basic point is that before processing, we must pay attention to the density of raw materials. If the density is too large, it is equivalent to the hardness. It depends on that the hardness exceeds the hardness of the tool. If it exceeds the hardness, it is very difficult to process. It will not only damage the parts and processing equipment, but also cause production risk. Therefore, generally speaking, raw materials should be lower than the hardness of the tool, so that it can be easily processed.
The above is the requirement of raw materials for precision mechanical parts processing
ken. tang@chengcg.com
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