Geometric characteristic modeling for flexible contact of sanding wheel–polished complex surface

The blade profile of a milled aeroengine blisk is a spatial free-form surface with significant curvature changes, which seriously restrict the quality uniformity of the polished surface. To investigate the geometric characteristics of the flexible contact of an elastic grinding tool–polished complex...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2020-09, Vol.110 (7-8), p.1691-1700
Main Authors: Huai, Wenbo, Lin, Xiaojun, Shi, Yaoyao
Format: Article
Language:English
Subjects:
CAE) and Design
Compression tests
Compression zone
Computer simulation
Computer-Aided Engineering (CAD
Curvature
Engineering
Free form
Grinding
Grinding tools
Industrial and Production Engineering
Machine tools
Mathematical analysis
Mathematical models
Mechanical Engineering
Media Management
Original Article
Polishing
Sanding
Surface geometry
Workpieces
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The blade profile of a milled aeroengine blisk is a spatial free-form surface with significant curvature changes, which seriously restrict the quality uniformity of the polished surface. To investigate the geometric characteristics of the flexible contact of an elastic grinding tool–polished complex surface, a polishing process equipment integrating “CNC machine tool + flexible grinding head + elastic grinding tool” was used in this study. Through an analysis of the geometric theory, a mathematical model for the boundary between the sanding wheel and polished surface in the contact zone, a mathematical model for the compression amount in the contact zone, and a mathematical model for the removal depth were established to conduct simulation and polishing tests. The results show that both the compression amount of the sanding wheel and curvature radius on workpiece surface have remarkable effects on the boundary and removal depth in the contact zone; the feed speed, rotation speed, and particle size of the sanding wheel have no bearing on the boundary in the contact zone, but they can influence the removal depth markedly. The simulation results are basically consistent with the test results, proving that the established models are reliable and applicable to geometric characteristic prediction of the elastic grinding tool–polished complex surface.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-020-05959-7