Precision machining is an operation that transforms a workpiece, and there are two classifications: cold machining and heat treatment.
Precision machining is the process of transforming the size or performance of a workpiece by machining machinery. It is divided into cold machining and heat treatment according to the ambient temperature of the workpiece to be machined. Cold machining is usually done at room temperature and does not cause chemical or physical changes to the workpiece. Processing that is usually at higher or lower than room temperature and causes chemical or physical changes to the workpiece is called heat treatment. Cold processing can be divided into cutting and pressure processing according to the difference of processing methods. Heat treatment is more common in heat treatment, forging, casting and welding.
Steel and aluminum have different material densities on the premise that the material is moderately hard and soft, and technical engineers will fully consider the overall use of performance factors to confirm the material.
Precision machining of the material standards are still some, not what material are used the same processing technology, such as too soft or hard material, the front one can choose ordinary tools and cutting volume large, the latter one must be high hardness or tool small amount of cutting. Precision machining must pay attention to the density of the material before processing, if the density is too large, equivalent to the hardness is also very large, the processing process standards are also large.
