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Turning method and cutting tool

A technology of turning and turning tool, which is applied in the field of turning, medium carbon steel material and stainless steel material turning. It can solve the problems that the surface roughness of the workpiece is difficult to guarantee, affect the production efficiency and processing cost, and the number of tool changes is too many, so as to reduce the weight of the tool. The effect of reducing the number of grinding times, reducing the difficulty of turning and surface roughness, and reducing the number of tool changes

Inactive Publication Date: 2018-06-08
TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem that the present invention solves is to provide a kind of cutting method and a kind of turning tool, by the turning tool provided by the present invention, can improve medium carbon steel material and stainless steel material when finishing turning allowance is less than 0.03mm, workpiece surface roughness is difficult Guarantee issues; and always use the position of the tool tip for turning, the tool wears quickly, and the number of tool changes is high during mass production, which affects production efficiency and processing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) The outer circle diameter D 外 The medium carbon steel material or stainless steel material with a length of 65mm and a length of 150mm is clamped on a CNC lathe, and the three-jaw chuck is extended by 30-40mm, and a 90° outer round rough turning tool is used for rough turning. 外 The diameter of 65mm is machined to 60.02-60.03mm, and the allowance for finishing turning is 0.02-0.03mm.

[0022] (2) Select YT15 material for fine turning outer circle turning tool, the main cutting edge and auxiliary cutting edge of the turning tool are R4.5-R6mm arc, the main flank and auxiliary flank are R6.5-R8mm arc surface , the intersection of the main flank and the auxiliary flank has an arc-shaped edge. The cutting speed is preferably 90m / min-110m / min, the feed rate is preferably 0.02mm / r-0.05mm / r, the cutting fluid is preferably water-soluble coolant, and the finishing spindle speed is calculated based on the diameter of the workpiece that has been roughed in the previous step....

Embodiment 2

[0024] (1) The inner hole diameter D 内 The medium carbon steel material or stainless steel material with a length of 55mm and a length of 150mm is clamped on a CNC lathe, and the three-jaw chuck is extended by 30-40mm, and a 90° inner circle rough turning tool is used for rough turning. 内 The diameter of 55mm is machined to 59.97-59.98mm, and the allowance for finishing turning is 0.02-0.03mm.

[0025] (2) Select YT15 material for fine turning inner hole turning tool, the main cutting edge and auxiliary cutting edge of the turning tool are R4.5-R6mm arc, the main flank and auxiliary flank are R6.5-R8mm arc surface , the intersection of the main flank and the auxiliary flank has an arc-shaped edge. The cutting speed is preferably 90m / min-110m / min, the feed rate is preferably 0.04mm / r-0.07mm / r, the cutting fluid is preferably water-soluble coolant, and the finishing spindle speed is calculated based on the diameter of the workpiece that has been roughed in the previous step. U...

Embodiment 3

[0027] (1) The diameter D 端 The medium carbon steel material or stainless steel material with a length of 60mm and a length of 150mm is clamped on a CNC lathe, and the three-jaw chuck is extended by 30-40mm, and a 90° outer round rough turning tool is used for rough turning. 端 It is machined to 20.02-20.03mm in the length direction of 60mm, and the allowance for finishing turning is 0.02-0.03mm.

[0028] (2) Select YT15 material for fine turning outer circle turning tool, the main cutting edge and auxiliary cutting edge of the turning tool are R4.5-R6mm arc, the main flank and auxiliary flank are R6.5-R8mm arc surface , the intersection of the main flank and the auxiliary flank has an arc-shaped edge. The cutting speed is preferably 90m / min-110m / min, the feed rate is preferably 0.04mm / r-0.07mm / r, the cutting fluid is preferably water-soluble coolant, and the finishing spindle speed is calculated based on the diameter of the workpiece that has been roughed in the previous step...

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Abstract

The invention provides a turning method. The turning method comprises the following steps: carrying out fine machining and turning on the surface of a medium-carbon steel material or a stainless steelmaterial by adopting a turning tool, wherein a main cutting blade and a secondary cutting edge of the turning tool are circular arcs with the radius of R4.5 to R6mm, a main rear tool surface and a secondary rear tool surface are circular-arc surfaces with the radius of R6.5 to R8mm and a circular-arc edge formed at the crossed part of the main rear tool surface and the secondary rear tool surfaceis a cutting edge. According to the turning method provided by the invention, the main cutting blade and the secondary cutting edge of the turning tool, and the main rear tool surface and the secondary rear tool surface are selected and the position of the cutting edge is changed, so that the vibration of the tool in a fine machining and turning process is reduced, and the fine machining difficulty and the surface roughness are reduced. The invention further provides a turning tool; the main cutting blade and the secondary cutting edge of the turning tool are the circular arcs with the radiusof R4.5 to R6mm; the main rear tool surface and the secondary rear tool surface are the circular-arc surfaces with the radius of R6.5 to R8mm; the circular-arc edge formed at the crossed part of themain rear tool surface and the secondary rear tool surface is the cutting edge.

Description

technical field [0001] The invention relates to the technical field of turning medium carbon steel materials and stainless steel materials, in particular to a turning method and a turning tool. Background technique [0002] The turning process includes two parts: rough turning and finishing turning. The purpose of rough turning is to quickly remove the machining allowance, while the purpose of finishing is to remove the finishing allowance and ensure the dimensional accuracy and surface roughness of the workpiece. Therefore, the finishing turning Processing directly affects whether the workpiece to be processed can meet the requirements of the drawing and the use requirements, but in the process of finishing turning, due to the influence of many factors such as tools, fixtures, machine tools, vibration, temperature, etc., it is difficult to ensure the dimensional accuracy and surface roughness of the workpiece. A certain degree of difficulty, especially when the back cut of ...

Claims

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Application Information

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IPC IPC(8): B23B1/00B23B27/14
CPCB23B1/00B23B27/14
Inventor 徐国胜迟涛李杰董庆运张翔宇
Owner TIANJIN UNIV OF TECH & EDUCATION TEACHER DEV CENT OF CHINA VOCATIONAL TRAINING & GUIDANCE
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