Process Planning for the Lateral Extrusion of a Pipe with a Lost Core

Takahiro Ohashi; Wataru Kimura

doi:10.4028/www.scientific.net/KEM.735.3

Paper Titles

Preface, Organizing Committee, Sponsor

Process Planning for the Lateral Extrusion of a Pipe with a Lost Core
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Direct Molten Metal Rolling of Aluminum Alloy A3003
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Twin Roll Casting of Aluminium Alloy ADC12, A3003, A7075
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Power Rating and Tools Wear in Milling of Hardened SAE 4340 Steel with Minimum Quantity of Fluid (MQF)
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Effect of Mo Addition to ZA22 Grain Refined by Ti and Ti-B on the Maximum Pressing Force and Consumed Work after Pressing by the Equal Channel Angular, ECAP, Process
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Effect of Bonding Temperature on the Microstructure and Strength of the Joint between Magnesium AZ31 and Ti-6Al-4V Alloys Using Copper Coatings and Tin Interlayers
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Effect of Welding Heat Input on Microstructure and Softening Behavior of 5CrMoV Steel
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 735Process Planning for the Lateral Extrusion of a...

Process Planning for the Lateral Extrusion of a Pipe with a Lost Core

Abstract:

In this paper, the authors discuss process planning for the lateral extrusion of a pipe with a lost core. In this process, maximum longitudinal length of the bulged part is restricted by the balance of the extrusion speed of the material and the lost core. In the free bulging condition, longitudinal length is limited to the pipe radius, because the extrusion speed of the core is slower than that of the pipe material when the longitudinal length of the bulged part is longer. The authors designed a two-stage forming process using the transit shape of a truncated cone to solve this problem. The dimensions of the truncated cone were estimated through trial-and-error using a commercial FEM simulator and considering the stretch effect for wrinkles of the pipe by deformation and traveling of the lost core. Finally, the authors conducted experiments to confirm the design’s validity. As a result, a longer longitudinal length of the bulged part than the pipe radius was successfully obtained.

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Periodical:

Key Engineering Materials (Volume 735)

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3-7

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.735.3

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Online since:

May 2017

Authors:

Takahiro Ohashi*, Wataru Kimura

Keywords:

Hydroforming, Lateral Extrusion, Process Design, Process Planning, Tube Forming

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References

[1] T. Ohashi and K. Hayashi: J. Mater. Proc. Technol. Vol. 138 (2003), p.560.

Google Scholar

[2] T. Ohashi, K. Matsui and Y. Saotome: J. Mater. Proc. Technol. Vol. 113 (2001), p.98.

Google Scholar

[3] S. Fuchizawa et al., Precise Machine, Vol. 45 No. 1(1979), p.106.

Google Scholar

[4] S. Fuchizawa: Proc. 2nd ICTP, Vol. 2(1987), p.727.

Google Scholar

[5] F. Dohmann and Ch. Hartl: J. Mater. Proc. Technol., Vol. 71 No. 1(1997), p.174.

Google Scholar

[6] M. Koç and T. Altan: J. Mater. Proc. Technol., Vol. 108 No. 3(2001), p.384.

Google Scholar

[7] R. Balendra and Y. Qin: J. Mater. Proc. Technol., Vol. 145(2004), p.189.

Google Scholar

[8] H. Kudo and K. Shinozaki: Proc. Int. Conf. Product. Eng. Part I, (1974), p.314.

Google Scholar

[9] S. Rudolf, A. Felde and M. Liewald: Proc. 5th International Conference and Exhibition on Design and Production of Machines and Dies/Molds (2009), p.81.

Google Scholar