Automatic Tool Selection for NC Turret Operation in Sheet Metal Stamping

1994 ◽  
Vol 116 (2) ◽  
pp. 239-246 ◽  
Author(s):  
Kyung Ho Cho ◽  
Kunwoo Lee
Keyword(s):  
Sheet Metal ◽  
Shape Index ◽  
Production Performance ◽  
Tool Selection ◽  
Index Set ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Metal Fabrication ◽  
Metal Stamping ◽  
Automatic Tool

In sheet metal fabrication using an NCT (numerically controlled turret punch press) machine, automatic tool selection is a major problem to be solved to improve its production performance. However, this operation has been done either manually or semi-automatically by human experts. In this paper, we have introduced the shape-index-set to handle the shape of sheet metal parts and developed an algorithm through which one can find the successive matching curves between two curve lists, one from the punching tool and the other from the boundaries of the sheet metal part. The algorithm is used to select the tools automatically to punch out the boundaries of sheet metal parts. Several experiments are presented to prove the successful tool selection.

Simulation and Analysis for Layout of Aerospace Sheet Metal Process with Lean Concept

2006 ◽  
Vol 505-507 ◽  
pp. 907-912 ◽  
Author(s):  
Chi Kong Huang ◽  
Hsien Ming Chang ◽  
Chia Hui Lin
Keyword(s):  
Sheet Metal ◽  
Job Shop ◽  
Value Added ◽  
Simulation Software ◽  
Validation Process ◽  
Metal Production ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Metal Fabrication ◽  
A Value

Aerospace industry is a value-added and technology integrated industry. Sheet metal parts are important portion of aerostructures. The sheet metal production line combines five different routing types together. This study tries to make a comparison between job shop layout and cellular layout with lean concept. According to precedence diagram of sheet metal fabrication process, the model and measurement indicators can be constructed. The simulation software SIMPROCESS is then used to simulate the real-world cases under dynamic conditions. After the verification and validation process, we analyze the results that collected by simulation and provide the suggestions for the layout of aerospace sheet metal process.

The Integration of CAPP and Production Planning for Bent Sheet Metal Parts

2005 ◽  
Vol 6-8 ◽  
pp. 263-270 ◽  
Author(s):  
Dirk Cattrysse ◽  
P. Collin ◽  
Joost R. Duflou ◽  
T.H.M. Nguyen ◽  
Dirk Van Oudheusden
Keyword(s):  
Production Planning ◽  
Sheet Metal ◽  
Process Planning ◽  
Planning System ◽  
Tool Selection ◽  
Computer Aided Process Planning ◽  
Metal Parts ◽  
Air Bending ◽  
Sheet Metal Parts ◽  
Selection For

Both the topics of Computer Aided Process Planning and Production Planning in the context of sheet metal air bending have been presented as standalone topics previously. This paper will focus on the interaction between both modules. Choices made by the CAPP-module seem to influence the possible gains that can be obtained in production planning and vice versa. The used procedures for both the CAPP module, including process planning and tool selection for air bending, and the Production Planning module, modelling the production planning as a Travelling Purchaser Problem, are described. The different areas of interaction between both modules are also specified. Results demonstrate that the interaction between both modules has a significant impact and should be taken into account in an integrated process and production planning system.

Experimental and Numerical Analysis of Blanking for Thin Sheet Metal Parts

2001 ◽  
Vol 4 (3-4) ◽  
pp. 319-333
Author(s):  
Vincent Lemiale ◽  
Philippe Picart ◽  
Sébastien Meunier
Keyword(s):  
Numerical Analysis ◽  
Sheet Metal ◽  
Thin Sheet ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Thin Sheet Metal
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