Efficient machining method for complex window in thin-wall carburizing area

A carburizing zone and window technology, applied in metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve the problem of poor guarantee of the dimensional accuracy and surface gloss of the processed surface, the processing parameters cannot be given too high, and the overall reduction of the tool Rigidity and other issues to achieve the effect of improving cutting stability, maintaining cutting stability, and improving processing efficiency

Pending Publication Date: 2021-12-31
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the requirements of the corner arc R3 on one side of the long end area, the diameter of the cutting edge of the tool can only be smaller than φ6, which further reduces the overall rigidity of the tool
At the same time, the window is in the carburized area, the surface hardness of the material is high, the wall thickness of the single side of the window position is thinner, the thinnest part is only 5.11, the vibration is larger during cutting, the tool wears faster, and the dimensional accuracy and surface gloss of the processed surface are average. bad guarantee
In order to reduce the cutting vibration of the tool, the processing parameters cannot be set too high, which will cause relatively low processing efficiency

Method used

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  • Efficient machining method for complex window in thin-wall carburizing area
  • Efficient machining method for complex window in thin-wall carburizing area
  • Efficient machining method for complex window in thin-wall carburizing area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0053] Taking the complex window of the thin-walled carburizing zone of the active bevel gear as an example to introduce the invention:

[0054] 1) Use a hard material end mill φ6 to remove material in the window surface area by plane milling, and use it as a working plane for subsequent drilling. The working plane is rectangular, with a length of 48.8mm and a width of 15mm. The programming strategy adopts the reciprocating plane milling method, the amount of cutting on one side is 0.5mm, and the cutting depth and large feed are adopted (cutting parameters: S=4000r / min, F=300mm / min) to improve the hardening material removal efficiency. The hard material end mill φ6 is a special end mill for hard material processing. The number of cutting edges is 6, which can reduce the cutting depth of each tooth per unit time, which is beneficial to protect the cutting edge of the tool, and is beneficial to the realization of durable and stable cutting. Surface gloss provides a stable and r...

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Abstract

The invention relates to an efficient machining method for a complex window in a thin-wall carburizing area, and belongs to the technical field of cutting machining. The method comprises the steps that firstly, a small-diameter end mill is adopted to conduct layered removal on a carburized layer from two perpendicular angles of a window, then a drill bit is adopted to conduct drilling removal on four corner positions of the window, and finally a large-diameter end mill is adopted to conduct layered removal on the window.

Description

technical field [0001] The invention relates to a method for efficiently processing complex windows in a thin-walled carburizing zone, and belongs to the technical field of cutting processing. Background technique [0002] The complex windows in the thin-walled carburizing zone are distributed on the circumferential surface of the part, with an axial width of 17.05±0.05 and a radial width of 28±0.1. The corner arc on one side of the short end area is R2, and the corner arc on the side of the long end area is R3, both the long end and the short end are parallel to the vertical plane. The structure of the window area is complex, and the length of the long end area is relatively large, with a length of 32.14. Since the long end of the window is also parallel to the vertical surface, the tool needs to have a large overhang length during processing to ensure that the entire area on one side of the long end can be processed without interfering with the surface of the shaft diamet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23Q3/06B23Q11/10
CPCB23P15/00B23Q3/06B23Q11/10
Inventor 王金甲刘加良李琳赵强王守信
Owner HARBIN DONGAN ENGINE GRP
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