Guangzhou, Mar 23, 2019 (Issuewire.com) - As we know, it's a great challenge to machine high hardness steels, which have hardness more than HRC 50. But KLARM manages to develop a good solution to meet the requirements to help worldwide customers to manufacture special hard CNC machined parts that they need.
The competition in the industrial world requires one to constantly come out with the newer, the better, and the more efficient technology which solves the problems of various production processes. Moreover, new materials are being worked within various production processes, which one would have never imagined could be used for that purpose. In order to put such materials in various applications, different methodologies are required.
Hard materials like S7 steel and H13 steel are many a time required in moulds due to their remarkable properties like impact resistance and temperature resistance. Although these hard materials improve the performance of the final products, these materials require tough machinability. Machining hard materials seem almost impossible for many manufacturers. For machining hard materials one requires - A rigid tool system of high precision, tough and hard tool material, tool holders of high stiffness, proper and appropriate tool geometry and cutting conditions, etc. There is a huge difference in the CNC machining process of hard materials and normal materials used for making moulds. Working with hard steels requires the application of the right tools, the right strategy and the right technology at the right production stages.
The right tools are required by productions to machine hard steels. Working with hard steels requires one to have all the tool parameters accurately and precisely calculated. It is a must to consider well the sharpness and the edge measurements of the tool.
The square end, ball end and bullnose mills are used at different production stages. The mill with ball end does rough and finishing operations. The mill with bull nose end is operated on large and flat surfaces. This tool is not so perfect as it gives rise to chipping. The corner parts of the material are processed by the mill with a square end. These tools should be occasionally oiled and dry machining should be done with air to maintain their optimum performance.
Working with hard materials requires the application of right strategy too. For instance, these days hard turning of the parts is done prior to the grinding to the final finish. Grinding process is specifically expensive and needs to be done in accordance with different shapes of materials. Now manufacturers are using various strategies to easily and swiftly turn a prehardened part. Insert selection plays an exceedingly important role in the process of hard turning. Selection of suitable insert is complementary to the process. For materials with much higher ranges of hardness, CBN inserts are used. Wear and tear of tools will necessarily require its maintenance like sharpening and hence the edges of the tool are varied. This variation needs to be accounted for in the CAM programming. The best strategy used is the elimination of sharp turns and rather introducing small arcs at the corners in the program. This helps in the machining of corner parts and avoids the wear and tear of the machine. A sudden change of direction by 90 degrees slows down the machine.
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KLARM Machining is one of the leading CNC machining shop in china. Different types of processes like CNC Milling China are employed in the production of various goods. Contact us to get good milling services and quality machined parts.
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Guangzhou Klarm Machining Ltd
Source :Guangzhou Klarm Mould Ltd
