Language ∨

中文

Jinan Hongxiang Machine Tool Manufacturing Co., Ltd.

新闻中心

弘祥刀具将为您提供产品质量优良的套装车刀和各种型号、用途广泛的特殊车刀

Company News

Industry News

Processing of non-standard tools

Release time:

2022-07-15

Processing of non-standard tools

In the process of non-standard tools, some situations that are difficult to process with standard tools are often encountered. Therefore, the production of non-standard tools is very important for mechanical cutting. Because the use of non-standard tools in metal cutting is more common in milling, the production of non-standard tools in milling is briefly introduced. Since the production of standard tools is aimed at the cutting of common metal or non-metal parts with a wide range and a large amount, when the workpiece is overheated and the hardness increases, or the workpiece is stainless steel, it is very easy to stick to the knife, and there are also some surface of the workpiece. When the geometry is very complex, or the surface to be machined has high roughness requirements, standard tools cannot meet the needs of machining. Therefore, in the process of processing, it is necessary to carry out targeted design for the material of the tool, the geometry of the blade edge, and the geometric angle, etc., which can be divided into two categories: those that do not require special ordering and those that require special ordering. There are two main problems that do not need to be customized for tools, such as size problems and surface roughness problems.

If it is a size problem, you can choose a standard tool with a size similar to the required size, and it can be solved by grinding, but two points should be noted: 1) The size difference should not be too large, generally not more than 2mm, because the size difference If it is too large, it will cause the geometry of the tool to change, which directly affects the chip space and geometric angle. 2) If it is an end mill with a blade hole, it can be re-ground on a common machine tool, and the cost is low. If it is a keyway milling cutter without a blade hole, it cannot be carried out on an ordinary machine tool, and it needs to be carried out on a special five-axis linkage. The cost of changing the grinding on the machine tool will also be higher. If it is a surface roughness problem, it can be achieved by changing the geometric angle of the blade. For example, increasing the degree of the front and rear angles will significantly improve the surface roughness of the workpiece. However, if the rigidity of the user's machine tool is not enough, the edge may be dull and the surface roughness can be improved. This aspect is very complicated, and it is necessary to analyze the processing site before drawing a conclusion.

非标刀具的加工