|Table of Contents|

 Process Reliability Evaluation Method of Turning Large Pitch External Thread

(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2019年01期
Page:
1-7
Research Field:
机械动力工程
Publishing date:

Info

Title:
 Process Reliability Evaluation Method of Turning Large Pitch External Thread

Author(s):
 JIANG Bin1WANG Sen1LI Zhe1ZHANG Wei1WU Peijun2
 (1.Key Lab of National and Local United Engineering for HighEfficiency Cutting and Tools, 
Harbin University of Science and Technology, Harbin 150080, China; 
2.Qiqihar No.2 Machine Tool (Group) Co., Ltd. Qiqihar 161000, China)
Keywords:
 Keywords:large pitch external thread machining error grey correlation process reliability
PACS:
TG714
DOI:
10.15938/j.jhust.2019.01.001
Abstract:
 Abstract:There is a great influence of machining error distribution of large pitch screw’s left and right thread surface along the axial direction on positioning and repeat positioning accuracy of press slide Thread cutting process should have high reliability The method through judging the machining accuracy by maximum error ignores the distribution characteristics of the machining error along the axial direction and cannot reveal the reliability of the process For all this, there are two tests of turning external thread with pitch 16mm conducted in the same process Through the experiments, distributions of big diameter error, small diameter error,half of thread angle error,pitch and pitch diameter error of left and right thread surfaces are structured The process reliability can be judged by the similarity between the machining error sequences through the grey correlation analysis method Then verification of process reliability evaluation method is verified by experiment Finally, the results show that the method is applicable to recognize and evaluate the stability, repeatability of thread surface machining error and consistence of left and right thread surface machining error

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Last Update: 2019-03-26