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Manufacturing method of inner bore cooling polycrystalline diamond (PCD) thread high-speed forming cutter

A technology of polycrystalline diamond and forming tools, which is applied in the field of mechanical processing and can solve the problems of high cost and low efficiency of EDM

Active Publication Date: 2011-04-06
上海工具厂有限公司 +1
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  • Abstract
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Problems solved by technology

For example, the Chinese Patent Document No. CN101530975 introduces a method for preparing a high-precision arc edge diamond turning tool. The diamond tool used in this patent is processed by a traditional grinding method, and the grinding process is complicated in processing. The blade shape is less efficient and more costly than EDM

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  • Manufacturing method of inner bore cooling polycrystalline diamond (PCD) thread high-speed forming cutter
  • Manufacturing method of inner bore cooling polycrystalline diamond (PCD) thread high-speed forming cutter

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Embodiment Construction

[0018] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0019] In the first step, the carbide blank is ground to the required size on the SAACK CNC tool grinding machine. Grinding parameters are: speed 10000r / min, feed 30mm / min.

[0020] In the second step, use an electric spark drilling machine to drill a main cooling hole with a diameter of 2mm in the center of the cutter body, and then drill two side cooling holes with a diameter of 1mm at the lower end of the main cooling hole. In order to ensure the design requirements of the tool, the processing parameters of the main cooling hole are: 19 pulses, 06 tubes, 30 servos, 1 capacitor, 5 pressure, 15-20 inter-electrode...

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Abstract

The invention relates to a manufacturing method of an inner bore cooling polycrystalline diamond (PCD) thread high-speed forming cutter, belonging to the technical field of machining. The method comprises the following steps: carrying out abrasive machining on a hard alloy cutter body, punching cooling bores in the hard alloy cutter body, carrying out PCD chip welding, and finally carrying out wire cutting on the PCD chip by using a slow wire cutting machine, thereby obtaining the cutter. The invention realizes high-efficiency precision manufacturing technique of a hard alloy straight-shank straight-channel welded-type inner bore cooling PCD thread high-speed forming cutter.

Description

technical field [0001] The invention relates to a tool manufacturing method in the technical field of mechanical processing, in particular to a tool manufacturing method for inner hole cooling polycrystalline diamond thread high-speed forming tool. Background technique [0002] As the automotive industry evolves, engine technology is constantly evolving. The silicon-aluminum alloy engine block has largely replaced the original cast iron engine block. In order to improve the machining efficiency and machining accuracy of the cylinder block, high-speed cutting technology has been widely used in engine manufacturing. The existing cylinder block processing mainly uses high-performance coated carbide tools. [0003] Silicon-aluminum alloy has the characteristics of low density, high hardness, high strength, good wear resistance, etc. It is an ideal material to replace cast iron for manufacturing engines. However, the machinability of silicon-aluminum alloy is relatively poor, ...

Claims

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Application Information

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IPC IPC(8): B23P15/36
Inventor 薛锴萧伟锋陈明陈孝光郑小虎刘钢安庆龙
Owner 上海工具厂有限公司
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