Chapter 5 / Case Study 2.2: Clamping of thin-walled curved workpieces
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00318277" target="_blank" >RIV/68407700:21220/18:00318277 - isvavai.cz</a>
Result on the web
<a href="http://www.springer.com/gp/book/9783319452906" target="_blank" >http://www.springer.com/gp/book/9783319452906</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-45291-3_5" target="_blank" >10.1007/978-3-319-45291-3_5</a>
Alternative languages
Result language
angličtina
Original language name
Chapter 5 / Case Study 2.2: Clamping of thin-walled curved workpieces
Original language description
Thin-walled curved workpieces are typical for structural parts of airplanes. The issue in the workpiece clamping and subsequent machining is changeable workpiece stiffness during material removal. The fixture forces and the cutting forces deform the workpiece with dependence on the part decreasing static stiffness that causes large local surface location errors of the part. As a result, the workpiece wall thickness is out of tolerance and consequently the part’s weight is also out of tolerance. The proposed solution is based on new fixtures with integrated support and clamping function. The workpiece is clamped using a vacuum. A suitable thickness measurement sensor was integrated into the machine tool. The new fixture elements are autonomous and plug-and-produce ready, with integrated safety by monitoring the minimal workpiece clamping force. The fixture control enables fully automated operation using the specific control software. The machining process was optimized in terms of tool path strategy and cutting conditions to avoid chatter during machining and shorten the production time. The proposed manufacturing process leads to a shortening of the production time with the requested surface quality. The presented manufacturing procedure is beneficial from the productivity and cost point of view. A group of fixtures, including the necessary harness and control, offers a universal possibility for replacing a set of six specific fixtures designed as a mould with part negative shape.
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
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OECD FORD branch
20302 - Applied mechanics
Result continuities
Project
<a href="/en/project/7E13050" target="_blank" >7E13050: INTElligent FIXture for the manufacturing of low rigidity components</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Intelligent Fixtures for the Manufacturing of Low Rigidity Components
ISBN
978-3-319-45290-6
Number of pages of the result
18
Pages from-to
81-98
Number of pages of the book
183
Publisher name
Springer International Publishing AG
Place of publication
Cham
UT code for WoS chapter
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