Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction

Huazhou Lou; Kim A. Stelson

doi:10.1115/IMECE2000-1860

Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction

Huazhou Lou, Kim A. Stelson

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The control of each individual bend and overall process is presented in part 1 of the paper. In part 2 of the paper, statistical methods are used to analyze and improve 3-D tube bending accuracy. The relationship between bending process error and tube geometry error is obtained with Monte Carlo simulation. For the same tube tolerance requirement, the required process tolerance varies in a large range based on tube geometry. Among the three bending errors: bend angle, bend plane and distance between bends, bend angle error has the largest influence on tube error. For a tube with multiple bends, the overall tube geometry error can be minimized by intentionally modify the nominal values of the bends to be made based on the errors in the existing bends. The required modification of the bending commands is calculated with an adaptive bend correction algorithm.

Original language	English (US)
Title of host publication	Manufacturing Engineering
Publisher	American Society of Mechanical Engineers (ASME)
Pages	621-627
Number of pages	7
ISBN (Electronic)	9780791819166
DOIs	https://doi.org/10.1115/IMECE2000-1860
State	Published - 2000
Event	ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000 - Orlando, United States Duration: Nov 5 2000 → Nov 10 2000

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume	2000-X

Conference

Conference	ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000
Country/Territory	United States
City	Orlando
Period	11/5/00 → 11/10/00

Bibliographical note

Funding Information:
The authors appreciate the funding and technical assistance of GE Aircraft Engines, Elano and Eagle Precision Inc. (now Eagle Eaton-Leonard). The authors gratefully acknowledge the following individuals for their'help on this research: Mike Umney and Steve Mitchell of GE Aircraft Engines, Steve Creech of Elano, Tim Blurton-Jones, Qian Gao and Jim Sabine of Eagle Eaton-Leonard.

Publisher Copyright:
Copyright © 2000 by ASME.

Publisher link

10.1115/IMECE2000-1860

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Lou, H., & Stelson, K. A. (2000). Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction. In Manufacturing Engineering (pp. 621-627). (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 2000-X). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2000-1860

Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction. / Lou, Huazhou; Stelson, Kim A.
Manufacturing Engineering. American Society of Mechanical Engineers (ASME), 2000. p. 621-627 (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 2000-X).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lou, H & Stelson, KA 2000, Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction. in Manufacturing Engineering. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 2000-X, American Society of Mechanical Engineers (ASME), pp. 621-627, ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000, Orlando, United States, 11/5/00. https://doi.org/10.1115/IMECE2000-1860

Lou H, Stelson KA. Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction. In Manufacturing Engineering. American Society of Mechanical Engineers (ASME). 2000. p. 621-627. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)). doi: 10.1115/IMECE2000-1860

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abstract = "The control of each individual bend and overall process is presented in part 1 of the paper. In part 2 of the paper, statistical methods are used to analyze and improve 3-D tube bending accuracy. The relationship between bending process error and tube geometry error is obtained with Monte Carlo simulation. For the same tube tolerance requirement, the required process tolerance varies in a large range based on tube geometry. Among the three bending errors: bend angle, bend plane and distance between bends, bend angle error has the largest influence on tube error. For a tube with multiple bends, the overall tube geometry error can be minimized by intentionally modify the nominal values of the bends to be made based on the errors in the existing bends. The required modification of the bending commands is calculated with an adaptive bend correction algorithm. ",

author = "Huazhou Lou and Stelson, {Kim A.}",

note = "Funding Information: The authors appreciate the funding and technical assistance of GE Aircraft Engines, Elano and Eagle Precision Inc. (now Eagle Eaton-Leonard). The authors gratefully acknowledge the following individuals for their'help on this research: Mike Umney and Steve Mitchell of GE Aircraft Engines, Steve Creech of Elano, Tim Blurton-Jones, Qian Gao and Jim Sabine of Eagle Eaton-Leonard. Publisher Copyright: Copyright {\textcopyright} 2000 by ASME.; ASME 2000 International Mechanical Engineering Congress and Exposition, IMECE 2000 ; Conference date: 05-11-2000 Through 10-11-2000",

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AB - The control of each individual bend and overall process is presented in part 1 of the paper. In part 2 of the paper, statistical methods are used to analyze and improve 3-D tube bending accuracy. The relationship between bending process error and tube geometry error is obtained with Monte Carlo simulation. For the same tube tolerance requirement, the required process tolerance varies in a large range based on tube geometry. Among the three bending errors: bend angle, bend plane and distance between bends, bend angle error has the largest influence on tube error. For a tube with multiple bends, the overall tube geometry error can be minimized by intentionally modify the nominal values of the bends to be made based on the errors in the existing bends. The required modification of the bending commands is calculated with an adaptive bend correction algorithm.

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Three-dimensional tube geometry control for rotary draw tube bending part 2: Statistical tube tolerance analysis and adaptive bend correction

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