Control of the Machining Precision in Thread Cutting

Journal Article · Sat Dec 15 04:00:00 EST 2018 · Russian Engineering Research

DOI:https://doi.org/10.3103/S1068798X18120109· OSTI ID:22943355

Timiryazev, V. A. ^[1]; Orlov, E. M. ^[2]

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1. Stankin Moscow State Technical University (Russian Federation)
2. OOO Intekhnika (Russian Federation)

In research on thread cutting, the flaws inevitably arising in the first two and last two turns of the thread, when the process is unsteady, are analyzed. Specifically, insertion and removal of the tool from the workpiece are accompanied by abrupt change in thread diameter: abrupt decrease in the case of threads on shafts; and increase for threads in holes. That leads to the appearance of slots on assembly, thereby increasing the likelihood of accidents and other problems in thread operation. A method of eliminating such gaps is proposed and tested: control of the machining precision in the course of thread cutting. In particular, the thread diameter and pitch are controlled by compensation of the axial and radial elastic displacements of the tool, based on timely correction of the transverse and longitudinal supply during the unsteady stage of the process. Compensation of the machining errors improves the dimensional precision of the thread and decreases the systematic errors and spread in the thread dimensions.

• OSTI ID: 22943355
• Journal Information: Russian Engineering Research, Journal Name: Russian Engineering Research Journal Issue: 12 Vol. 38; ISSN 1068-798X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ACCIDENTS
ACCURACY
CONTROL
CUTTING
DEFECTS
ERRORS
OPERATION
TOOLS