Chapter 5 / Case Study 2.2: Clamping of thin-walled curved workpieces

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Chapter 5 / Case Study 2.2: Clamping of thin-walled curved workpieces

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Chapter 5 / Case Study 2.2: Clamping of thin-walled curved workpieces

Popis výsledku anglicky

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.

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/7E13050" target="_blank" >7E13050: INTElligent FIXture for the manufacturing of low rigidity components</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Intelligent Fixtures for the Manufacturing of Low Rigidity Components

ISBN

978-3-319-45290-6

Počet stran výsledku

18

Strana od-do

81-98

Počet stran knihy

183

Název nakladatele

Springer International Publishing AG

Místo vydání

Cham

Kód UT WoS kapitoly

—