Mon Jul 04 15:29:28 CST 2022
There are two types of cutting in the machine factory, which are called "rough cutting" and "finish cutting". After "rough cutting", the workpiece is very close to the required shape and size, but there is still enough metal margin on the processed surface for finishing, so that the surface of the workpiece is smooth and the size is accurate. To Generally speaking, steel bars, forgings, castings, etc. can achieve the required shape and size by only one rough cutting and one fine cutting. However, sometimes certain parts of the workpiece may require more than one rough cutting. Some processing, such as low precision requirements or small amount of metal to be removed, may also require only one finishing cutting to.
Rough cutting must remove most of the remaining material, and the cutting force must be quite large, which means that the entire machine, cutting tools, workpiece, or all three must be able to withstand it. The purpose of the machining workers is to remove the remaining material as quickly as possible, and the remaining machining surface should not be too rough, and the slender workpiece cannot resist bending or damage the top.
Fine cutting is to make the surface of the workpiece smooth and accurate in size, so it is a finer cutting. Finishing emphasizes accuracy-using very sharp cutting tools, less metal is removed, and high precision requirements for measurement.
Whether it is rough cutting or fine cutting, machining workers must adjust the machine tool according to a given job. They must consider the size and shape of the workpiece, the type of material, the type of cutting tool, and the nature of the upcoming cutting. Then start to adjust the machine tool to the correct speed and feed rate, and adjust the cutting tools to reach the required