THE INFLUENCE OF THE NON-SYMMETRIC PUNCHING PROCESS PARAMETER ON THE HOLE SHAPE AND QUALITY OF A COMMERCIALLY PURE TITANIUM SHEET

Authors

  • Muslim Mahardika ᵃDepartment of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, 55281, Indonesia ᵇCentre for Innovation of Medical Equipments and Devices/CIMEDs, Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Indonesia
  • Yani Kurniawan Department of Mechanical Engineering, Faculty of Engineering, Pancasila University, Jakarta, Indonesia
  • Suyitno - ᵃDepartment of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, 55281, Indonesia ᵇCentre for Innovation of Medical Equipments and Devices/CIMEDs, Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Indonesia
  • Muhammad Haritsah Amrullah Department of Mechanical Engineering, Politeknik Manufaktur Negeri Bangka Belitung, Indonesia
  • Budi Arifvianto ᵃDepartment of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, 55281, Indonesia ᵇCentre for Innovation of Medical Equipments and Devices/CIMEDs, Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Indonesia

DOI:

https://doi.org/10.11113/jurnalteknologi.v86.16848

Keywords:

Non-symmetric punching, punching process, punch force, sheared surface, work hardening

Abstract

Recently, punching technology has become one of the promising manufacturing techniques for a thin metallic sheet. The processing parameters used in this technique have been recognized to influence the hole shape produced in the working materials. Therefore, it is important to understand the effect of the punching process parameters on the hole shape and quality over the manufactured materials. This study aims to determine the influence of the punching process on the non-symmetrical hole shape and quality over a commercially pure titanium sheet. The effect of punch speed on the punch force and the sheared surface is also studied, by applying the punch velocities of 10, 35 and 70 mm/s. The sheared surface of the hole was examined at its four different sides, namely K (straight), L (outer radius), N (inner radius) and M (straight). The results show uneven distribution of punch strength as detected at the affected region of the non-symmetrical hole. In addition, the punch force increased with the increase of punch speed. Meanwhile, the sheared surfaces on each side were apparently different. The burnish height on the side of the radius was found to be about 0.038 mm higher than that on the straight side. The burnish height on the radius side increases by 0.43 mm with the increasing punch speed from 10 to 70 mm/s. However, the increased punch velocity did not always increase the burr height. The work hardening that occurs on the straight side is smaller by about 15% than the radius side.

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Published

2023-11-18

Issue

Vol. 86 No. 1: January 2024

Section

Science and Engineering

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How to Cite

THE INFLUENCE OF THE NON-SYMMETRIC PUNCHING PROCESS PARAMETER ON THE HOLE SHAPE AND QUALITY OF A COMMERCIALLY PURE TITANIUM SHEET. (2023). Jurnal Teknologi, 86(1), 1-13. https://doi.org/10.11113/jurnalteknologi.v86.16848