The Experts below are selected from a list of 1857 Experts worldwide ranked by ideXlab platform
Taufik Hardiansyah - One of the best experts on this subject based on the ideXlab platform.
-
Pengaruh Variasi Kuat Arus dan Wire Feed Rate Pada Baja Karbon Rendah Terhadap Kekuatan Tarik Hasil Pengelasan GMAW.
SKRIPSI Jurusan Teknik Mesin - Fakultas Teknik UM, 2018Co-Authors: Taufik HardiansyahAbstract:ABSTRAK Hardiansyah, Taufik. 2018. Pengaruh Variasi Kuat Arus dan Wire Feed Rate Pada Baja Karbon Rendah Terhadap Kekuatan Tarik Hasil Pengelasan GMAW. Skripsi, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Malang. Pembimbing: (I) Drs. Solichin, S.T., M.Kes., (II) Drs. H. Abdul Qolik, M. Pd. Kata Kunci : Kuat Arus, Wire Feed Rate, GMAW Gas metal arc welding (GMAW) banyak digunakan untuk pengelasan logam ferrous salah satunya baja karbon. Baja karbon banyak digunakan antara lain untuk lambung kapal dan bejana tekan. Dalam pengelasan GMAW sering ditemui adanya penggunaan variasi kuat arus dan Wire Feed Rate yang berpengaruh terhadap baik buruknya mutu hasil pengelasan. Tujuan dari dilakukannya penelitian ini yaitu untuk mengetahui Pengaruh Variasi Kuat Arus dan Wire Feed Rate Pada Baja Karbon Terhadap Kekuatan Tarik Hasil Pengelasan GMAW. Metode yang digunakan dalam penelitian ini ialah eksperimental. Jenis pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif. Rancangan yang digunakan dalam penelitian ini adalah faktorial 3 × 2 yaitu tiga variasi kuat arus dan dua variasi Wire Feed Rate. Objek penelitian ini adalah baja karbon yang diberikan perlakuan pengelasan setelah itu dilakukan pengujian tarik. Hasil penelitian diperoleh bahwa variasi kuat arus pada pengelasan baja karbon dengan las GMAW memberikan pengaruh terhadap nilai kekuatan tarik yang dapat dilihat dengan adanya perbedaan kekuatan tarik dari setiap perlakuan kuat arus yang bervariasi. Selain kuat arus yang mempengaruhi kualitas hasil pengelasan, Wire Feed Rate juga memberikan pengaruh terhadap kualitas hasil pengelasan yang akan mempengaruhi kekuatan tariknya. Hasil pengelasan dengan kuat arus 120 A dan Wire Feed Rate 4 meter/menit memberikan kekuatan tarik hasil pengelasan tertinggi yaitu sebesar 52,67 kgf/mm2 dan pengelasan dengan kuat arus 120 A dan Wire Feed Rate 5 meter/menit memberikan kekuatan tarik hasil pengelasan terendah yaitu sebesar 48,33 kgf/mm2. SUMMARY Hardiansyah, Taufik. 2018. AnEffect of ElectricCurrent Variations and Wire Feed Rate on Low Carbon Steels towardTensile Strength on the Result of Gas Metal Arc Welding.Thesis, Department of Mechanical Engineering, Faculty of Engineering, State University of Malang. Advisors:(I) Drs. Solichin, S.T., M.Kes., (II) Drs. H. Abdul Qolik, M. Pd. Keywords: Electric Current, Wire Feed Rate, GMAW Gas metal arc welding (GMAW) was widely used for ferrous metal welding, one of which is carbon steels. Carbon steels is widely used as main material of hull and pressure vesel. In GMAW welding, it is often found the use of electric current variations and Wire Feed Rate effectthing both the quality of the welding results. The purpose of this study was to know the effect of electric current variations and Wire Feed Rate on carbon steel toward strength of GMAW results. The method used in this study was experimentalresearch. The type of approach was quantitative approach. The design used was factorial 3 × 2, with three variations of electric current and two variations of Wire Feed Rate. The object of this study was the carbon steel given the welding treatment after the tensile test done. The result showed that the variation of electric current in welding of carbon steel with GMAW gave effect to the value of tensile strength which can be seen by the difference of tensile strength of each varying electric current treatment. In addition to electric currents affected the welding quality, Wire Feed Rate also affected the quality of welding results that will affect the tensile strength. The result of welding with electric current 120 A and the Wire Feed Rate of 4 meters / min gave the highest tensile strength (52,67 kgf / mm2) and the welding with electric current 120 A and the Wire Feed Rate of 5 meters / min gave the lowest tensile strength (48.33 kgf / mm2)
-
PENGARUH VARIASI KUAT ARUS DAN Wire Feed Rate PADA BAJA KARBON RENDAH TERHADAP KEKUATAN TARIK HASIL PENGELASAN GMAW
SKRIPSI Jurusan Teknik Mesin - Fakultas Teknik UM, 2018Co-Authors: Taufik HardiansyahAbstract:ABSTRAK Hardiansyah, Taufik. 2018. Pengaruh Variasi Kuat Arus dan Wire Feed Rate Pada Baja Karbon Rendah Terhadap Kekuatan Tarik Hasil Pengelasan GMAW. Skripsi, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Negeri Malang. Pembimbing: (I) Drs. Solichin, S.T., M.Kes., (II) Drs. H. Abdul Qolik, M. Pd. Kata Kunci : Kuat Arus, Wire Feed Rate, GMAW Gas metal arc welding (GMAW) banyak digunakan untuk pengelasan logam ferrous salah satunya baja karbon. Baja karbon banyak digunakan antara lain untuk lambung kapal dan bejana tekan. Dalam pengelasan GMAW sering ditemui adanya penggunaan variasi kuat arus dan Wire Feed Rate yang berpengaruh terhadap baik buruknya mutu hasil pengelasan. Tujuan dari dilakukannya penelitian ini yaitu untuk mengetahui Pengaruh Variasi Kuat Arus dan Wire Feed Rate Pada Baja Karbon Terhadap Kekuatan Tarik Hasil Pengelasan GMAW. Metode yang digunakan dalam penelitian ini ialah eksperimental. Jenis pendekatan yang digunakan dalam penelitian ini adalah pendekatan kuantitatif. Rancangan yang digunakan dalam penelitian ini adalah faktorial 3 × 2 yaitu tiga variasi kuat arus dan dua variasi Wire Feed Rate. Objek penelitian ini adalah baja karbon yang diberikan perlakuan pengelasan setelah itu dilakukan pengujian tarik. Hasil penelitian diperoleh bahwa variasi kuat arus pada pengelasan baja karbon dengan las GMAW memberikan pengaruh terhadap nilai kekuatan tarik yang dapat dilihat dengan adanya perbedaan kekuatan tarik dari setiap perlakuan kuat arus yang bervariasi. Selain kuat arus yang mempengaruhi kualitas hasil pengelasan, Wire Feed Rate juga memberikan pengaruh terhadap kualitas hasil pengelasan yang akan mempengaruhi kekuatan tariknya. Hasil pengelasan dengan kuat arus 120 A dan Wire Feed Rate 4 meter/menit memberikan kekuatan tarik hasil pengelasan tertinggi yaitu sebesar 52,67 kgf/mm2 dan pengelasan dengan kuat arus 120 A dan Wire Feed Rate 5 meter/menit memberikan kekuatan tarik hasil pengelasan terendah yaitu sebesar 48,33 kgf/mm2
Pragya Shandilya - One of the best experts on this subject based on the ideXlab platform.
-
surface integrity of ni rich niti shape memory alloy at optimized level of Wire electric discharge machining parameters
Journal of Materials Engineering and Performance, 2019Co-Authors: Himanshu Bisaria, Pragya ShandilyaAbstract:The concern of this experimental work is to study the surface integrity aspects such as surface morphology, three-dimensional surface topography, recast layer, phase analysis, and micro-hardness for Ni55.95Ti44.05 shape memory alloy at the optimized level of Wire electric discharge machining parameters. A mathematical model was developed for surface roughness and material removal Rate considering servo voltage, pulse on time, Wire tension, Wire Feed Rate, and pulse off time using response surface methodology technique. In order to obtain the optimized parameters, multi-objective optimization technique grey relation analysis was utilized. The adequacy of the developed model was also checked by analysis of variance. At optimal parameters setting, i.e., pulse on time 123 µs, pulse off time 58 µs, servo voltage 50 V, Wire tension 3 N, and Wire Feed Rate 5 m/min, maximum material removal Rate (8.223 mm3/min) and minimum surface roughness (1.93 µm) were achieved. Surface characteristics of machined surface divulge the presence of discharge cRaters, debris, molten droplets, micro-voids, spherical nodules, and cracks. A recast layer of thickness 19 µm with approximately 21% of foreign elements was deposited on the machined surface at optimized parameters, whereas the micro-hardness of the outer machined surface was found to be increased approximately 1.98 times as compared to micro-hardness of bulk material. X-ray diffraction analysis shows the presence of the following compounds on the machined surface NiTi, Ni4Ti3, Ti4O3, Cu5Zn8, Ni(TiO3), and NiZn.
-
experimental studies on electrical discharge Wire cutting of ni rich niti shape memory alloy
Materials and Manufacturing Processes, 2018Co-Authors: Himanshu Bisaria, Pragya ShandilyaAbstract:The experimental investigation explores the effect of electrical discharge Wire cutting (EDWC) variable parameters such as spark gap voltage, Wire tension, pulse off time, Wire Feed Rate, and pulse...
-
parametric optimization during Wire electrical discharge machining using response surface methodology
Procedia Engineering, 2012Co-Authors: Pragya Shandilya, P K Jain, N K JainAbstract:Present study has been made to optimize the process parameters during machining of SiCp/6061 Al metal matrix composite (MMC) by Wire electrical discharge machining (WEDM) using response surface methodology (RSM). Four input process parameters of WEDM (namely servo voltage (V), pulse-on time (TON), pulse-off time (TOFF) and Wire Feed Rate (WF)) were chosen as variables to study the process performance in terms of cutting width (kerf). The analysis of variance (ANOVA) was carried out to study the effect of process parameters on process performance. In addition mathematical models have also been developed for response parameter. Properties of the machined surface have been examined by the scanning electron microscopic (SEM).
Himanshu Bisaria - One of the best experts on this subject based on the ideXlab platform.
-
surface integrity of ni rich niti shape memory alloy at optimized level of Wire electric discharge machining parameters
Journal of Materials Engineering and Performance, 2019Co-Authors: Himanshu Bisaria, Pragya ShandilyaAbstract:The concern of this experimental work is to study the surface integrity aspects such as surface morphology, three-dimensional surface topography, recast layer, phase analysis, and micro-hardness for Ni55.95Ti44.05 shape memory alloy at the optimized level of Wire electric discharge machining parameters. A mathematical model was developed for surface roughness and material removal Rate considering servo voltage, pulse on time, Wire tension, Wire Feed Rate, and pulse off time using response surface methodology technique. In order to obtain the optimized parameters, multi-objective optimization technique grey relation analysis was utilized. The adequacy of the developed model was also checked by analysis of variance. At optimal parameters setting, i.e., pulse on time 123 µs, pulse off time 58 µs, servo voltage 50 V, Wire tension 3 N, and Wire Feed Rate 5 m/min, maximum material removal Rate (8.223 mm3/min) and minimum surface roughness (1.93 µm) were achieved. Surface characteristics of machined surface divulge the presence of discharge cRaters, debris, molten droplets, micro-voids, spherical nodules, and cracks. A recast layer of thickness 19 µm with approximately 21% of foreign elements was deposited on the machined surface at optimized parameters, whereas the micro-hardness of the outer machined surface was found to be increased approximately 1.98 times as compared to micro-hardness of bulk material. X-ray diffraction analysis shows the presence of the following compounds on the machined surface NiTi, Ni4Ti3, Ti4O3, Cu5Zn8, Ni(TiO3), and NiZn.
-
experimental studies on electrical discharge Wire cutting of ni rich niti shape memory alloy
Materials and Manufacturing Processes, 2018Co-Authors: Himanshu Bisaria, Pragya ShandilyaAbstract:The experimental investigation explores the effect of electrical discharge Wire cutting (EDWC) variable parameters such as spark gap voltage, Wire tension, pulse off time, Wire Feed Rate, and pulse...
M. S. Patil - One of the best experts on this subject based on the ideXlab platform.
-
investigations on material removal Rate during Wire electrodischarge machining of nickel titanium alloy
2020Co-Authors: Vinayak N. Kulkarni, V.n. Gaitonde, Rohit Sureban, M. S. PatilAbstract:Nickel–titanium (NiTi) shape-memory alloys (SMA) are being extensively used in high-end and crucial applications in the fields like aerospace, bioengineering, robotics, and automobile, and the areas of their application are growing at a high Rate due to their unique characteristics. For all such applications, the machining of NiTi SMA is a crucial task. In this study, the machining of NiTi SMA using Wire electrodischarge machining (WEDM) and copper Wire as the electrode has been studied for the various input parameters. The quality and the time duration for the machining depend on the selection of input parameters such as pulse on/off time, Wire Feed Rate and servo voltage. The experiments for the study were planned according to the full factorial design (FFD), and then, it was analyzed by response surface methodology (RSM) mathematical models. It was found that with the increase in pulse on and pulse off duration, the material removal Rate increased accordingly. In the present experimental studies, for the higher Wire Feed Rate, the MRR increased initially and then decreased thereafter.
-
investigations on Wire electro discharge machining wedm characteristics of niti shape memory alloy
Microelectronics Systems Education, 2019Co-Authors: Vinayak N. Kulkarni, V.n. Gaitonde, K S Nalavade, M. S. PatilAbstract:NiTi(Nickel Titanium) Shape Memory Alloys (SMA) are expeditiously replacing conventional materials in aerospace, automobile, robotics and bio-engineering fields due to its distinctive characteristics like shape memory effect, pseudo elasticity and biocompatibility. Machining of these alloys is strenuous by traditional methods. The unconventional methods like Wire electro discharge machining (WEDM) can competently machine these SMAs. But improper selection of WEDM parameters may lead to undesirable results such as poor surface finish and higher machining time. The present study attempts to explore the influence of three system variables; pulse on time, pulse off time and Wire Feed on performance criteria's like material removal Rate (MRR) and surface roughness (SR) during WEDM of NiTi SMA. Experiments were conducted in accordance with Full Factorial Design (FFD) and results were analysed using Response surface methodology (RSM) based mathematical models. The investigation outcomes revealed that pulse on time has more influence on MRR and SR than pulse off time and Wire Feed. Maximum MRR is achieved at higher pulse on time with the combination of higher pulse off time and lower Wire Feed Rate. Better surface finish is observed at decreased pulse on time, increased pulse off time and minimum Wire Feed Rate.
Shiqing Zheng - One of the best experts on this subject based on the ideXlab platform.
-
formation quality optimization of laser hot Wire cladding for repairing martensite precipitation hardening stainless steel
Optics and Laser Technology, 2015Co-Authors: Peng Wen, Zhenhua Feng, Shiqing ZhengAbstract:Abstract Laser cladding is an advantaged repairing technology due to its low heat input and high flexibility. With preheating Wire by resistance heat, laser hot Wire cladding shows better process stability and higher deposition efficiency compared to laser cold Wire/powder cladding. Multi-pass layer were cladded on the surface of martensite precipitation hardening stainless steel FV520B by fiber laser with ER410NiMo Wire. Wire Feed Rate and preheat current were optimized to obtain stable Wire transfer, which guaranteed good formation quality of single pass cladding. Response surface methodology (RSM) was used to optimize processing parameters and predict formation quality of multi-pass cladding. Laser power P, scanning speed Vs, Wire Feed Rate Vf and overlap ratio η were selected as the input variables, while flatness ratio, dilution and incomplete fusion value as the responses. Optimal clad layer with flat surface, low dilution and no incomplete fusion was obtained by appropriately reducing Vf, and increasing P, Vs and η. No defect like pore or crack was found. The tensile strength and impact toughness of the clad layer is respectively 96% and 86% of those of the substRate. The clad layer showed nonuniform microstructure and was divided into quenched areas with coarse lath martensite and tempered areas with tempered martensite due to different thermal cycles in adjacent areas. The tempered areas showed similar hardness to the substRate.
-
formation quality optimization of laser hot Wire cladding for repairing martensite precipitation hardening stainless steel
Optics and Laser Technology, 2015Co-Authors: Zhenhua Feng, Shiqing ZhengAbstract:Abstract Laser cladding is an advantaged repairing technology due to its low heat input and high flexibility. With preheating Wire by resistance heat, laser hot Wire cladding shows better process stability and higher deposition efficiency compared to laser cold Wire/powder cladding. Multi-pass layer were cladded on the surface of martensite precipitation hardening stainless steel FV520B by fiber laser with ER410NiMo Wire. Wire Feed Rate and preheat current were optimized to obtain stable Wire transfer, which guaranteed good formation quality of single pass cladding. Response surface methodology (RSM) was used to optimize processing parameters and predict formation quality of multi-pass cladding. Laser power P, scanning speed Vs, Wire Feed Rate Vf and overlap ratio η were selected as the input variables, while flatness ratio, dilution and incomplete fusion value as the responses. Optimal clad layer with flat surface, low dilution and no incomplete fusion was obtained by appropriately reducing Vf, and increasing P, Vs and η. No defect like pore or crack was found. The tensile strength and impact toughness of the clad layer is respectively 96% and 86% of those of the substRate. The clad layer showed nonuniform microstructure and was divided into quenched areas with coarse lath martensite and tempered areas with tempered martensite due to different thermal cycles in adjacent areas. The tempered areas showed similar hardness to the substRate.
