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Method and special fixture for improving processed surface toughness of poppet root

A technology for processing surface and roughness, which is applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., to achieve the effect of ensuring processing effect, reliable compression and reducing impact

Active Publication Date: 2013-05-15
WUXI TURBINE BLADE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above problems, the present invention provides a method for improving the surface roughness of fungal leaf root processing, which solves the current problem of only relying on processing experience to determine the cutting tool and cutting parameters, and ensures the processing effect of the surface roughness after the cutting tool is sharpened. Consistency, and it fully considers the factors affecting surface roughness, effectively improving the surface roughness of processing

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  • Method and special fixture for improving processed surface toughness of poppet root
  • Method and special fixture for improving processed surface toughness of poppet root
  • Method and special fixture for improving processed surface toughness of poppet root

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Embodiment Construction

[0019] First, select the forming tool according to the material of the blade and the shape of the blade root, check whether the circular runout of each tooth of the forming tool is within the range of 0-0.015mm and ensure that the roughness of the cutting edge of the tool is Ra0.2μm ~Ra0 .4μm, if the circular runout is out of tolerance, then select the corresponding tool sharpening method according to the circular runout out of tolerance to sharpen the rake face of each tooth of the forming tool, and then determine the rough milling and finishing milling of the blade root The cutting parameters, where the cutting parameters to ensure the rough milling of the blade root is the cutting depth a p =0.1 mm ~0.5mm, feed speed V f =10 mm / min ~15mm / min, the spindle speed n=100 r / min ~130r / min, the cutting parameter of blade root fine milling is cutting depth a p =0.1 mm ~0.3mm, feed speed V f =11 mm / min ~13mm / min, spindle speed n=120 r / min ~130r / min; check the rigidity of the machin...

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Abstract

The invention provides a method for improving processed surface toughness of a poppet root, which solves the problem that a tool and cutting parameters are determined by processing experience only at present, ensures consistency of the surface toughness processing effect of the sharpened tool, fully regards factors influencing the surface toughness, and effectively ensures the processed surface toughness. The method comprises the following steps of: selecting a tool according to a material of a blade and the shape of the root and checking whether the circular runout of the tool is overproof; determining a proper tool sharpening method according to the overproof condition of the circular runout of the tool; determining whether cutting parameters for rough milling and refined milling of theroot meet requirements, checking the rigidity of a spindle of a machine tool, and determining a cutting fluid spraying direction; and checking whether the clamping of the blade meets the requirement.The invention also provides a fixture special for improving the processed surface toughness of the poppet root. The fixture can ensure that the poppet root of the blade is reliably pressed in the processing process so as to reduce the influence of the system rigidity on the surface roughness of the poppet root.

Description

technical field [0001] The invention relates to the technical field of blade processing, in particular to a method and a special fixture for improving the surface roughness of fungal leaf root processing. Background technique [0002] The fungus leaf root is difficult to process because its tooth shape is an internal tooth, especially it is more difficult to obtain a higher surface roughness on the surface of the tooth shape. In general, the poor surface roughness is mainly caused by the poor surface quality of the cutting edge and the poor rigidity of the system. In the current field of blade machining, it is mainly based on the material of the blade and the root of the blade to obtain a higher surface roughness. The shape of the blade is selected by the appropriate tool, and then the cutting parameters are determined according to the material of the blade and the selected tool specification. On the one hand, the disadvantage is that the selection of the tool and cutting pa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00B23Q3/06
Inventor 王怀宇吉洪高朱宏大曹军顾建伟徐大懋
Owner WUXI TURBINE BLADE
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