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All Journal Accurate: Journal of Mechanical Engineering and Science
Pujono
Politeknik Negeri Cilacap
Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Rancang Bangun Mesin Pemotong Pipa Dengan Pergerakan Torch Otomatis Untuk Optimasi Proses Plasma Cutting Pujono; Anggun Pamuji
Accurate: Journal of Mechanical Engineering and Science Vol. 1 No. 1 (2020): April, 2020
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v1i1.159

Abstract

The development of the industrial world that is increasingly making the production process in an industry or factory requires increasingly developing technology and materials and tools that are easy to obtain so that the production process can run smoothly. One component needed in the industrial world is a material in the form of a pipe. Some industries still do the pipe cutting process using oxy acetylene welding which still uses hand and saw saws. This is certainly not effective because the pipes have different size and thickness. To cut the pipe using oxy acetylene welding will produce less neat pieces because the process is still manual by hand and must rotate the pipe, so we need a tool to facilitate the cutting process. Pipe cutting machine using plasma cutting is a machine made to facilitate the pipe cutting process. The process of cutting pipes is cutting tools that move around to produce pieces of pipe. With this machine, it can help speed up students in the process of cutting pipes without having to rotate the pipe to be cut. The purpose of the skeletal design of the pipe cutting machine using plasma cutting is to count the elements of the machine, determine the frame of the machine, determine the design concept of the machine and make the design of the draw frame. In making this machine the author uses the design method approach of VDI 222, drawing software using Solidworks 2017 and working drawings using ISO standards. The results of the concept design evaluation decision are, the framework uses 40 x 40 x 3mm hollow iron with an estimated production time used is 15.32 hours or equal to 2 working days if it is done in 1 day for 8 hours. Then the bill of material in making the frame on this machine spent 53 parts. The best cutting results are obtained from cutting 8 mm thick pipes with a speed of 10 rpm. So from the planning, the framework on the pipe cutting machine using plasma cutting, can function properly. so we need a tool to facilitate the cutting process.
Desain dan Perancangan Alat Welding Holder untuk Pengelasan Pelat pada Las GMAW Ipung Kurniawan; Jenal Sodikin; Pujono; Joko Setia Pribadi; Agus Santoso
Accurate: Journal of Mechanical Engineering and Science Vol. 4 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v4i1.1870

Abstract

One of the metal welding processes required by the manufacturing industry is gas arc welding (GMAW). The welding process that is capable of transmitting large amounts of heat at high speeds is gas electric welding or GMAW (Gas Metal Arc Welding). The design mechanism for the movement of the X and Y axes in the development of GMAW welding holders uses the stages of finding ideas, studying literature, identifying problems, designing, making tools and testing machines. The purpose of this study was to design a mechanism for moving the X and Y axes in the development of an automatic GMAW torch holder machine and to calculate the machine elements in the development of an automatic GMAW torch holder machine. The process of designing and constructing the movement of the X and Y axes in the development of an automatic GMAW welding torch holder machine is carried out with a design procedure that is used as a reference in solving problems. The track shaft uses chrome steel with a diameter of 25 mm and a length of 800 mm, Linear bearings use type SCS25UU with an inner diameter of 25 mm, Linear rail shafts use aluminum alloy material with a diameter of 25 mm which is used to support the end of the track shaft, Ballscrew uses the SFU 2005 type with a size of 3/4 inch which is equipped with a ballscrew nut and also a nut housing, Bearing block uses a UCP type with a diameter of 20 mm, Flexible coupling measuring 5 mm to 10 mm is used to connect the drive screw with the stepper motor, The stepper motor is used as the main power to drive the drive screw type Nema 17 (17HD48002H-22B) with the specifications Step Angle: 1.8o, Rated Current: 1.5 Ampere, Voltage : 2.7V.
Co-Authors Agus Santoso Anggun Pamuji Jenal Sodikin Joko Setia Pribadi Kurniawan, Ipung