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All Journal Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Motor Bakar : Jurnal Teknik Mesin
Aep Surahto
Universitas Islam 45
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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PENGARUH VARIASI KECEPATAN FEEDING DAN KEDALAMAN PEMAKANAN END MILL TERHADAP TINGKAT KEKERASAN MATERIAL TEMBAGA Aep Surahto; Fatimah Dian Ekawati; Ellysa Kusuma Laksanawati
Motor Bakar : Jurnal Teknik Mesin Vol 6, No 2 (2022): Motor Bakar: Jurnal Teknik Mesin
Publisher : Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/mbjtm.v6i2.7817

Abstract

Determination of milling parameters using a variation of feeding speed and appropriate infeed depth is very important to obtain the desired surface roughness. The purpose of this study was to determine the fedding speed and infeed depth which resulted in the lowest and highest quality of roughness in the milling process. Parameters of variation of feeding speed used are 24 mm / min, 42 mm / min, 74 mm / min and meanwhile for the feeding depth is 0.1 mm, 0.3 mm, 0.5 mm. The results of the SJ-210 mitutoyo SJ-210 surface roughness tester were found, the surface roughness value from the infeeding depth of 0.1 mm was 1.222 and the average magnification value was 1.133 , the result of the infeeding depth was 0.3 mm. The roughness was 1.863  and the average magnitude was 1.598 , and the result of the infeeding depth of 0.5 mm the roughness value was 3.915  and the average magnitude was 3.566 . So this results in a better milling process and efficiency in terms of workmanship and results, resulting in the best surface roughness value on N7 with an average surface roughness value of 1.540 .
The Effect of Rotation Speed on the Quality of Friction Welding Joints in Aluminum and Copper Habibi Santoso; Aep Surahto; Fatimah Dian Ekawati
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.5773

Abstract

Welding of two different materials has high difficulty. It will cause porosity and hot cracks. To improve this, a friction welding (FRW) process has been developed to weld materials in a molten state. In this process, the material will be clamped so as not to be thrown, one other material will be rotated and brought together with the other clamped material and the pressure that causes the two sides of the material to meet. The purpose of this study is to determine the strength of welded joints of various materials through tensile testing and microstructure testing in friction welding (FRW) welding. This study used 6061 aluminium and ASTM B187 copper for welding. The cylinder had a diameter of 16 millimetres and a length of 70 millimetres, and the spindle rotational speeds were 1200 rpm, 1400 rpm and 1800 rpm. Welding results were assessed by measuring the strength of weld joints between different types of materials. Test results on welding with different spindle rotational speeds showed that friction welding with 1800 rpm was stronger with a maximum tensile strength of 2762.8 N and a tensile strength of 13.7N/mm2 when compared to 1200 rpm and 1400 rpm. In testing the microstructure of different types of materials, it can be seen that the mixture of the two metals at a rotational speed of 1800 rpm is more melting, so that the unification of the joining of the two materials is better when compared to the rotational speed of 1200 rpm and 1400 rpm.
Co-Authors Fatimah Dian Ekawati Fatimah Dian Ekawati Habibi Santoso Laksanawati, Ellysa kusuma