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Saiful Huda
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Journal : JURNAL TEKNOLOGI TECHNOSCIENTIA

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PELAPISAN NIKEL PADA PELAT TEMBAGA DENGAN WAKTU 5, 10 DAN 15 MENIT DAN KOMPOSISI NIKEL KLORID 50 GRAM, 60 GRAM DAN 70 GRAM Waluyo, Joko; Huda, Saiful; wuryanto, Toto Sri
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.1888

Abstract

Electroplating is plating of metal on the metal or something has conductor charateristic by aiding direct current (DC) of electricity in the electrolyte solution function as metal ions solvent media, so it gives performance and smoothness that is interesting on the metal surface. The aim of this research is to know the plating result quality by using the difference chloride nickel composition. The are 50 gramn 60 gram and 70 gran of NiCL with plating duration 5 minutes, 10 minutes and 15 minutes, on the material with dimension 100 mmx70mm with thickness 3 mm. Plating process is done in the trapezium solution reservoir tank or called by Hull Cell. The result of this research is obtained that the best composition is 70 gran NiCl, with 15 A/dm2 current dense and with 15 minutes plating duration, the highest hardness value= 188.5 VHN and the lowest = 71.1 VHN, the highgest thicknees = 53.84 µm and the lowest = 3.07 µm, the best fltnees with value of Ra= 0.0573 µm, Rz = 0.400 µm and R max = 0.4500 µm and the worst flatness with the value of Ra = 0.4723 µm, Rz = 3.8250 µm and R max = 4.500 µm whereas the highest result glossy result = 72 % and the lowest = 33 %.
HUBUNGAN ANTARA NOMOR FERIT DENGAN LAJU KOROSI PADA BAJA TAHAN KARAT AUSTENITIK DALAM KONDISI AS CAST DAN AS WELD Huda, Saiful
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v0i0.1890

Abstract

Austenitic stainless steel has superior characteristic in corrosion resistance, but it tends to crack when welded. To prevent the crack during the welding, Cr equivalent can be increased to produce fasa ferit in austenitic metric. Austenitic stainless steel containing minimum 4% of ferit will avoid weld cracking; however, it will decrease the corrosion resistance. The aim of this research is to know the corrosion rate of austenitic stainless steel with different ferit content in the as cast and as weld conditions. The different content of ferit is obtained in two ways. First, in as cast condition it is obtained by choosing 3 different materials with different chemical compound. Cr equivalent and Ni equivalent are calculated so that by using Schaeffer diagram the ferit content in the main metal ( austenitic steel) can be identified that is ferit number 7, 9, and 10.The second way is obtained through the welding process using different electrode for different main metal. By taking 20% of the delusion, austenitic stainless steel containing ferit number 6,8,and 9 is obtained. Corrosion rate, tensile strength, and impact tests are done on these six materials. The findings show that in the same ferit number, as weld stainless steel is more corrosive and the impact strength is much lower than that of as cast. Meanwhile, in the same material(as weld as well as as cast) the bigger the ferit number the more the corrosion and the lower the tensile strength and the impact are.
PENGARUH BUTTERING PADA KUALITAS HASIL PENGELASAN DISSIMILAR BAHAN BAJA LUNAK AISI 1020 DENGAN BAJA TAHAN KARAT AISI 304 Huda, Saiful; Waluyo, Joko; Yunianto, A.
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 11 Edisi Khusus Oktober 2006
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Welding is one of part importing in Manufacture process, because almost all manufacture product always get involve welding process, because of that process and welding result in manufacture process need to pay attention because this will be connected directly with quality of manufacture product. Mean while, as a judgmental in a production for stable in price is possible for using different material and has to weld by using welding process (dissimilar welding), in that hook, this research for knowing fisis characteristic and welding product mechanist between lowest carbon steel with endure corrosion steel by using direct dissimilar welding system and butter.In this research, was conducting welding by using low carbon steel material which have AISI standard 1020 and endure corrosion steel with ISI 304 series. Also AWS E 308 Welding was conducting by using SMAW system along with DC 80, 90 and 100 Ampere current variable. From that tarik tested that highest pull power had been result from welding with butter method and 90 ampere current is 44,79 Kg/mm2 and general result from tarik butter method test is better than direct method because all current variable has result bigger force than butter method. Mean while lowest pull power result on the direct welding with 100 amperes, its 43,3 kg/mm2. Mean while from the hardness result test that hardness distribution on the HAZ area and a good welding kernel result on the welding by using butter method with 90 ampere and direct method with 80 ampere. On the 100 ampere with butter method or hardness direct distribution not good because there are stepess on the hardness graphics that resulted. This point will be result in voltage concentration which is result in descending weld power.
Co-Authors Aji Pranoto Angrainy, Nunung Sonya Aprilia, Mega Aprilia, Pina Arindra Trisna Widiansyah, Arindra Trisna Basuki, Rio Dini Anggorowati Diyanti Eko Ismawan Fintoro, Teguh Handani, Mandha Frischa Hary Wibowo, Hary Hery Mahendra, Hery Joko Waluyo Juliawan, Juliawan Laeli Kurniasari Laras Rianingsih Masruki Kabib, Masruki Nidia Lestari Ningrum, Rio Lina Setio Prasetyo, Dimas Wahyu Racmawati, Trias Ismi Rita Dwi Ratnani Rivai, Muyas Ustad Rochmad Winarso Sari, Desi Eka SATRIYAS ILYAS Sepfiana, Fifi Titi Surti Toto Rusianto Wahyuni, Fitri Dwi wuryanto, Toto Sri Yolanda, Maria Yunianto, A. Yunita, Winda Riska