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jupri jupri
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Analisis Pegujian Tarik Pada Penyambungan Aluminium-Tembaga Dengan Proses Friction Stir Welding jupri jupri; Muhammad Ikhsan; Siswandi B Siswandi B; Zulkarnain Zulkarnain
INOVTEK POLBENG Vol 12, No 1 (2022): INOVTEK VOL.12 NO.1 2022
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v12i1.2476

Abstract

Abstrak Pengaruh bentuk sisi sambungan las antara aluminium A 5083 dan tembaga C 11000 yang diproses dengan friction stir welding terhadap sifat mekanik dan struktur mikro telah dievaluasi. Jenis sisi sambungan yang digunakan adalah linier-shaped, tooth-shaped dan saw-shaped. Tool yang digunakan berbentuk trapesium yang memiliki pin berulir dengan jarak pitch 0,5 mm. Parameter proses dibuat konstan yaitu putaran spindle 1500 rpm, traverse speed 24 mm/min, kemiringan tool 2°. Hasil pengujian menunjukkan nilai kekuatan tarik sambungan las dengan bentuk sisi linier-shaped adalah 151 MPa, tooth-shaped 113 MPa dan saw-shaped 167 MPa. Kata Kunci: Las, struktur mikro, rpm, kekuatan, sambungan. Abstract The effect of welding joint side between aluminum A 5083 and copper C 11000 processed by friction stir welding on mechanical properties and microstructure were observed. Linear shaped, tooth shaped, and saw shaped were used as welding joint side. The trapesium tool with pin screw was used in distance pitch of 0.5 mm. The parameter process was set constant for 1500 rpm, transverse speed 24 mm/min, and tilt angle 2˚. The results show that the tensile strength of linear shaped welded joints with 151 MPa, tooth shaped 113 MPa, and saw shaped 167 MPa. Keyword: Welding, microstructure, rpm, strength, joint.
PENGARUH SUDUT PAHAT PADA PENGGURDIAN KOMPOSIT SERAT DAUN NANAS / TERMOPLASTIK PADA PEMBENTUKAN DELAMINASI Zulkarnain Zulkarnain; Ismet Hari Mulyadi; Jupri Jupri; Siswandi B
Jurnal Inovtek Polbeng Vol 13, No 1 (2023): Inovtek VOL. 13 NO 1 2023
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i1.3325

Abstract

This study aims to determine the effect of the Gurdi tool angle on delamination in composite laminates in the formation of delaminations. The spacing of the selected reinforcing fibers was 2.4 and 6 mm in a composite laminate of ethylene vinyl acetate (EVA) polymer matrix with reinforcing fibers from pineapple leaves. The method used in composite fabrication is hand lay-up, namely by direct casting on three layers of fiber that has been woven and tied to the sides of the mold. For cutting speed, Vf 72 mm / min, using a chisel with a diameter of 8 mm with a tool angle of 70o and 118o. Delamination was determined using the Feda method. The delamination sections were observed using a digital microscope and then processed using AutoCAD to measure Dmax and Ad. The delamination ratio in the top hole for the tool diameter of 8mm with a 70° angle at the variation of the distance of 2 mm, 4 mm and 6 mm were 1.268, 1.224 and 1.192 for the bottom hole were 1.078, 1.042 and 1.029, respectively. Meanwhile, the ratio of delamination in the upper hole for a tool diameter of 8mm with an angle of 118° at a distance variation of 2mm, 4mm and 6mm were 1.194, 1.194, 1.158 for the bottom hole, respectively, 1.046, 1.042 and 1.038.
PENGARUH SUDUT PAHAT PADA PENGGURDIAN KOMPOSIT SERAT DAUN NANAS / TERMOPLASTIK PADA PEMBENTUKAN DELAMINASI Zulkarnain Zulkarnain; Ismet Hari Mulyadi; Jupri Jupri; Siswandi B
INOVTEK POLBENG Vol 13, No 1 (2023): Inovtek VOL. 13 NO 1 2023
Publisher : POLITEKNIK NEGERI BENGKALIS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35314/ip.v13i1.3325

Abstract

This study aims to determine the effect of the Gurdi tool angle on delamination in composite laminates in the formation of delaminations. The spacing of the selected reinforcing fibers was 2.4 and 6 mm in a composite laminate of ethylene vinyl acetate (EVA) polymer matrix with reinforcing fibers from pineapple leaves. The method used in composite fabrication is hand lay-up, namely by direct casting on three layers of fiber that has been woven and tied to the sides of the mold. For cutting speed, Vf 72 mm / min, using a chisel with a diameter of 8 mm with a tool angle of 70o and 118o. Delamination was determined using the Feda method. The delamination sections were observed using a digital microscope and then processed using AutoCAD to measure Dmax and Ad. The delamination ratio in the top hole for the tool diameter of 8mm with a 70° angle at the variation of the distance of 2 mm, 4 mm and 6 mm were 1.268, 1.224 and 1.192 for the bottom hole were 1.078, 1.042 and 1.029, respectively. Meanwhile, the ratio of delamination in the upper hole for a tool diameter of 8mm with an angle of 118° at a distance variation of 2mm, 4mm and 6mm were 1.194, 1.194, 1.158 for the bottom hole, respectively, 1.046, 1.042 and 1.038.
Co-Authors Ismet Hari Mulyadi Muhammad Ikhsan Siswandi B Siswandi B Siswandi B Zulkarnain Zulkarnain