Development of Magnetic-Field Assisted Finishing (MAF) Process for Chromium-Alloyed Low Carbon Steel Sheet Metal

2021 ◽  
Author(s):  
Guangchao Song ◽  
Bibek Poudel ◽  
Patrick Kwon ◽  
Haseung Chung ◽  
Zachary Detweiler ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Surface Roughness ◽  
Carbon Steel ◽  
Sheet Metal ◽  
Surface Finish ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Abrasive Particles ◽  
Steel Sheets ◽  
Final Surface

Abstract Magnetic-Field Assisted Finishing (MAF) is a polishing process that utilizes a slurry mixture made of ferrous and abrasive particles in a liquid medium, known as a brush. The brush attached to a magnetic tool directly interacts with the surface of a workpiece and removes any imperfections and defects in the surface giving a smooth and nice surface finish. In this study, two distinct MAF setups were applied to the surface of chromium alloyed low carbon steel sheets to achieve the surface finish. The preliminary studies were conducted on one setup to understand the polishing behavior of the sheets and the other setup was designed to polish larger areas of the sheets to mimic the practical sheet producing environment. The effect of processing conditions such as types and sizes of abrasives, brush composition, and finishing time to attain the final surface roughness of the sheets was studied. The brush with the weight composition of 4:1:1.5 (iron: 3 μm black ceramic: silicone) was found to be the optimal condition for polishing the sheet metal samples. The optimal conditions obtained were applied to the larger scaled experimental setup. The final surface roughness of 38 nm and 220 nm were achieved in these experimental setups, respectively.

scholarly journals An Investigation of the Shearing Forces Using Blanked Carbon Steel Sheets

2019 ◽  
Vol 22 (2) ◽  
pp. 131-135
Author(s):  
Ahmad Saad Jasim ◽  
Ali Abbar Khleif
Keyword(s):  
Carbon Steel ◽  
Sheet Metal ◽  
Low Carbon Steel ◽  
Hydraulic Press ◽  
Shear Angle ◽  
Low Carbon ◽  
Steel Sheets ◽  
Die Set ◽  
Important Challenge ◽  
Punch Geometry

An important challenge confronted when using blanking to machine sheet metal is the treatment of the shearing force in demand for great strength and heavy stock. One of the methods used to decrease the force wanted is the increase of a punch shear angle. In this work, experiments were conducted to study the effect of shear angle for blank has a diameter (50 mm) on shear force of a low carbon steel sheet (AISI 1008). Low carbon steel is a very common material used in fabrication of sheet metal components, with thickness of (0.5 mm). Tools used in the blanking tests were one traditional flat end punch and four different bevel sheared rooftop punches, which rooftop punches were compared to. and it (0°, 5°, 10°, 15°, 20°) a punches diameter (49.95 mm) by clearance (0.025mm) for each side , with a blanking speed (500mm/min). A special blanking die set is designed and manufactured and was a blank cut by a hydraulic press whose capacity (20 ton). The results showed that the blanking forces of (AISI 1008) low carbon steel metal could be decreased radically with best bevel punch geometry. Using (10°) shear angle at the punch end, the cutting forces decreased up to (90%) compared to the ones of the traditional flat end tool

scholarly journals Effect of Addition of a Very Small Amount of Carbon on the Transformation Texture of 1%Mn-0.034%Ti Extra-low Carbon Steel Sheets

2001 ◽  
Vol 87 (9) ◽  
pp. 600-606
Author(s):  
Masatoshi SUDO ◽  
Shinji WAKIKAWA ◽  
Masahiro OKUNO ◽  
Ichiro TSUKATANI
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Steel Sheets ◽  
Transformation Texture

scholarly journals Influence of DLC Coatings Deposited by PECVD Technology on the Wear Resistance of Carbide End Mills and Surface Roughness of AlCuMg2 and 41Cr4 Workpieces

Coatings ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1038
Author(s):  
Sergey N. Grigoriev ◽  
Marina A. Volosova ◽  
Sergey V. Fedorov ◽  
Mikhail Mosyanov
Keyword(s):  
Surface Roughness ◽  
Wear Resistance ◽  
Aluminum Alloy ◽  
Carbon Steel ◽  
Structural Characteristics ◽  
Low Carbon Steel ◽  
Single Layer ◽  
Chemical Vapor ◽  
Low Carbon ◽  
End Mills

The primary purpose of this work was to study the effectiveness of using diamond-like coatings (DLC) to increase the wear resistance of carbide end mills and improve the surface quality of the processed part when milling aluminum alloy and low-carbon steel. The functional role of forming an adhesive sublayer based on (CrAlSi)N immediately before the application of the external DLC film by plasma-enhanced chemical vapor deposition (PECVD) technology in the composition of a multicomponent gas mixture containing tetramethylsilane was established in the article. The article shows the degree of influence of the adhesive sublayer on important physical, mechanical, and structural characteristics of DLCs (hardness, modulus of elasticity, index of plasticity, and others). A quantitative assessment of the effect of single-layer DLCs and double-layer (CrAlSi)N/DLCs on the wear rate of end mills during operation and the surface roughness of machined parts made of aluminum alloy AlCuMg2 and low-carbon steel 41Cr4 was performed.

Influence of Carbon on Mechanical Properties of Cu bearing Extra Low Carbon Steel Sheets

2011 ◽  
Vol 82 (6) ◽  
pp. 734-740 ◽  
Author(s):  
Sungil Kim ◽  
Moon-Hi Hong ◽  
Kwang-Geun Chin ◽  
Jai-Hyun Kwak
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Steel Sheets
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