scholarly journals Desain dan Analisis Alat Bending V Sistem Hidro Pneumatik

2020 ◽  
Vol 17 (2) ◽  
pp. 168
Author(s):  
Muhammad Jufri Dullah ◽  
Muhammad Arsyad Suyuti ◽  
Sudarman Sudarman ◽  
Mariam Mariam ◽  
Muh Azwar Arham

The design of the pneumatic hydro system V bending tool serves as an alternative tool for bending plates replacing the manual bending method which is widely used in the industrial community, especially machining workshop workshops today. In this design the hydraulic jack bender is driven by a pneumatic cylinder so that the workload of the operator is lighter. As for the results of this design and analysis, a V bending tool with 750 mm frame height, 650 mm frame width, 150 mm hydraulic stroke length, and 5 mm diameter spring pull wire are obtained. In addition, the punch angle is 85o and the punch radius is 1.5 mm while the die angle is 85o, the width of the V die is 33 mm and the bending line capacity is 300 mm. The punch and die material chosen is steel AISI 1045.

2015 ◽  
Vol 786 ◽  
pp. 243-247
Author(s):  
H.M.T. Khaleed ◽  
Ghulam Abdul Quadir ◽  
M.F. Addas ◽  
Abdullah A.A.A. Al-Rashed ◽  
N.J.S Ahmed ◽  
...  

In this paper, thermal analysis of cup shaped article using finite element method for flash-less cold forging is presented. The work-piece specifications are calculated by developing mathematical relations between volumes of die cavity and work-piece. The three dimensional FE simulation is made by DEFORM F3 V 6.0 and geometrical modeling for the die and the work-piece is performed by SOLIDWORKS 2007 4.0. The work-piece used is of AISI 1045 steel and the die material is steel (AISI D2). The results of numerical simulation and analytical calculations are found in satisfactory agreement with the experimental results.


2019 ◽  
Vol 17 (1) ◽  
pp. 48
Author(s):  
Muhammad Arsyad Suyuti ◽  
Muhammad Iswar ◽  
Rusdi Nur ◽  
Erniyanti Erniyanti

Nowadays, the process of metal forming in the machining industry and welding workshop is developing very rapidly especially in the plate bending process. The bending process is the formation of metals which generally use plates or rods of both ferrous and non-ferrous metal materials by bending, which in the bending process will cause stretching or stretching on the neutral plane axis along the bending area and produce a straight bend line. The use of appropriate technology machines has been widely used to increase productivity, efficiency, and effectiveness in the production process for community businesses, especially those in the regions. One of the appropriate technologies that might be applied in the bending process is a hydraulic jack press that is equipped with a press tool. Press tool is one type of product forming, cutting and bending tools from the basic material of sheet plates whose operations are using a press tool. The results of the design of press tool bending tool V have a length of 300 mm bending line, 33 mm bending width, 110 mm spring height, free step distance of 19 mm. The punch angle used is 85⁰ with the punch radius used is 1.5 mm while the die angle is 85⁰. The selected punch and die material is Steel AISI 1045 HV HR.


Jurnal METTEK ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Angga Restu Pahlawan ◽  
Rizal Hanifi ◽  
Aa Santosa

Frame adalah salah satu komponen yang sangat penting dalam sebuah kendaraan, yang berfungsi sebagai penopang penumpang, mesin, suspensi, sistem kelistrikan dan lain-lain. Melihat fungsi dari frame sangat penting, maka dalam merancang sebuah frame harus diperhitungkan dengan baik. Banyak sekali jenis pengujian yang sering dipakai dalam perancangan sebuah struktur frame, salah satunya adalah digunakannya metode komputasi dengan menggunakan metode Finite Element Analysis (FEA). Tujuan dari penelitian ini adalah untuk mengetahui distribusi tegangan, regangan, displacement, dan safety factor dari hasil pembebanan statis pada frame gokar. Struktur frame didesain dan dianalisis menggunakan software Solidworks 2016. Material yang digunakan frame adalah baja AISI 1045 hollow tube 273,2 mm, dengan menggunakan pembebanan pengendara sebesar 50 kg dan 70 kg. Hasil dari perhitungan manual didapatkan tegangan maksimum sebesar 4,735  107 N/m2, sedangkan dari simulasi didapatkan sebesar 4,516  107 N/m2. Regangan maksimum didapatkan dari perhitungan manual sebesar 2,310  10-4. Displacement maksimum didapatkan dari perhitungan manual sebesar 1,864  108 mm, sedangkan dari simulasi didapatkan sebesar 1,624  108 mm. Safety factor minimum didapatkan dari perhitungan manual sebesar 11,193, dan perhitungan simulasi didapatkan sebesar 11,736. The frame is one of the most important components in a vehicle, which functions as a support for passengers, engines, suspensions, electrical systems and others. Seeing the function of the frame is very important, so designing a frame must be taken into account well. There are many types of tests that are often used in the design of a frame structure, one of which is the use of computational methods using the Finite Element Analysis (FEA) method. The purpose of this study was to determine the distribution of stress, strain, displacement, and safety factor from the results of static loading on the kart frame. The frame structure was designed and analyzed using Solidworks 2016 software. The material used in the frame is steel AISI 1045 hollow tube 27  3,2 mm, using a rider load of 50 kg and 70 kg. The result of manual calculation shows that the maximum stress is 4,735  107 N/m2, while the simulation results are 4,516  107 N/m2. The maximum strain is obtained from manual calculation of 2,310  10-4. The maximum displacement is obtained from manual calculations of 1,864  108 mm, while the simulation results are 1,624  108 mm. The minimum safety factor obtained from manual calculation is 11,193, and the simulation calculation is 11,736.


2009 ◽  
Vol 407-408 ◽  
pp. 690-693
Author(s):  
Takahiko Kusano ◽  
Ryutaro Tanaka ◽  
Akira Hosokawa ◽  
Takashi Ueda ◽  
Tatsuaki Furumoto ◽  
...  

This study deals with the influence of laser hardening for a carbon steel AISI 1045 on machinability in turning. Turning test was conducted for the purpose to clarify the influence of laser hardening for steel surface on the chip controllability and surface roughness. In turning laser hardened steel, continuous chip is broken in the laser hardened zone during cutting due to higher brittleness. The broken chips have spiral form and their length is approximately equal to those generated by less than 10 revolution cutting. The surface roughness shows slightly lower compared with non-laser hardened steel.


2002 ◽  
Vol 124 (2) ◽  
pp. 200-207 ◽  
Author(s):  
Mahfudz Al Huda ◽  
Keiji Yamada ◽  
Akira Hosokawa ◽  
Takashi Ueda

A technique for measuring temperature at the interface between a cutting tool and a chip is developed. A two-color pyrometer with fused fiber coupler is applied to the temperature measurement of the tool-chip interface in dry and wet turning. By using this pyrometer, it is possible to measure the temperature of a very small object without emissivity affecting the results. A translucent alumina sintered under HIP is used as the cutting tool, and an annealed carbon steel AISI 1045 is used as the workpiece. Water-soluble coolant is introduced onto the rake surface of the tool. The technique developed is suitable for measuring temperature at tool-chip interface, either in dry or wet cutting conditions. The effect of coolant on the temperature is small, since temperature reduction is only about 3 percent compared with the temperature in dry cutting. The temperature distributions on the cutting tool and the work material are analyzed using the finite element method. Good agreement is obtained between the analytical results and experimental ones.


Wear ◽  
2009 ◽  
Vol 267 (1-4) ◽  
pp. 433-440 ◽  
Author(s):  
M. Amirat ◽  
H. Zaïdi ◽  
A. Djamaï ◽  
D. Necib ◽  
D. Eyidi
Keyword(s):  

2012 ◽  
Vol 497 ◽  
pp. 324-328 ◽  
Author(s):  
Ahmed Al-Zahrani ◽  
Xiao Dan Xie ◽  
Yong Li

Vibration-assisted cutting (VAC) with polycrystalline diamond (PCD) tool refers to the cutting with certain amplitude and high frequency tool vibration, which can definitely reduce the cutting force and tool wear compared with conventional cutting (CC). In this paper, a plane strain orthogonal model for PCD tool cutting steel AISI 1045 is established by using the finite element software ABAQUS/explicit. Then the cutting force of VAC compared with CC is explained. The value and distribution of cutting force at different depths of cutting is analyzed. It is also studied the effects of vibration frequency and amplitude on cutting force and thrust force during the ultra-precision cutting process. Afterwards, optimum selection of process parameters is presented for VAC processing of steel AISI 1045.


2005 ◽  
Vol 495-497 ◽  
pp. 441-446
Author(s):  
M. Reza Bateni ◽  
Jerzy A. Szpunar ◽  
X. Wang ◽  
Dong Yang Li

In this research, surface texture changes of carbon steel AISI 1045 and stainless steel AISI 304 under simultaneous wear and corrosion were investigated. A solution of 3.5 % wt. NaCl was used as the corrosion agent and a pin-on-disk tribometer was employed to perform wear and corrosion wear tests.Texture investigations of the worn samples have shown texture changes after wear and corrosion-wear tests. In worn carbon steel samples after dry wear test, {011}<100> and {111} fiber texture components were developed in initially random oriented samples, whereas under corrosive-wear conditions, {111}<011> texture and {001}<110> texture were developed. In the stainless steel samples, {112}<110> texture component was observed under both dry and corrosive wear conditions, in the samples that had random grain orientations before corrosion and corrosion-wear tests.


Wear ◽  
1995 ◽  
Vol 181-183 ◽  
pp. 638-647 ◽  
Author(s):  
H. Visscher ◽  
M.B. de Rooij ◽  
P.H. Vroegop ◽  
D.J. Schipper

2004 ◽  
Vol 126 (3) ◽  
pp. 488-495 ◽  
Author(s):  
Bernhard Mu¨ller ◽  
Ulrich Renz ◽  
Stefan Hoppe ◽  
Fritz Klocke

A fiber-optic two-color pyrometer with high spatial and temporal resolution has been applied to measure temperatures at an external turning process. Different measurement positions have been realized at the chip and the workpiece. The measurements have been performed at three different workpiece materials: carbon steel AISI 1045, aluminum alloy AA 7075, and titanium alloy Ti6Al4V. The influences of different parameters like cutting speed, feed, and position of the measurement spot on the temperatures have been investigated. The cutting speed has been increased from conventional values up to 100 m/s for AISI 1045, 117 m/s for AA 7075, and 10 m/s for Ti6Al4V. Additionally, a review of radiation thermometry techniques and applications regarding time resolved temperature measurements in metal cutting will be presented.


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