Reducing surface roughness by chemical polishing of additively manufactured 3D printed 316 stainless steel components

2018 ◽  
Vol 100 (9-12) ◽  
pp. 2895-2900 ◽  
Author(s):  
Pawan Tyagi ◽  
Tobias Goulet ◽  
Christopher Riso ◽  
Francisco Garcia-Moreno
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Chemical Polishing ◽  
316 Stainless Steel ◽  
3D Printed

scholarly journals Pengaruh Parameter Shot Terhadap Kekerasan dan Kekasaran Permukaan Melalui Proses Shot-Peening Stainless Steel Tipe 316

2021 ◽  
Vol 19 (1) ◽  
pp. 18
Author(s):  
M I Mukhsen ◽  
R Nur ◽  
C. R. Rakka ◽  
M. A. Fattah
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Shot Peening ◽  
Steel Surface ◽  
Stainless Steel Surface ◽  
Bone Implant ◽  
316 Stainless Steel ◽  
Steel Shot ◽  
Implant Material

Type 316 stainless steel is a material that is often used in the medical world, especially as a material for making bone implant plates. However, the use of stainless steel as an implant material, stainless steel must be treated to increase the hardness and adjust the level of roughness on the surface. In this study, shot peening was carried out on the 316 stainless steel surface. The shooting parameters used were 2, 4, 6 minutes for the shooting duration, and 0o, 15o, 30o, 45o for the shooting angle, as well as the diameter of the steel shot used, i.e. 0.6 mm and 1 mm. The results of this study indicated that there was a change in the characteristic properties of 316 stainless steel, namely the hardness and surface roughness.

scholarly journals Laser-Assisted High Speed Machining of 316 Stainless Steel: The Effect of Water-Soluble Sago Starch Based Cutting Fluid on Surface Roughness and Tool Wear

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1311
Author(s):  
Farhana Yasmin ◽  
Khairul Fikri Tamrin ◽  
Nadeem Ahmed Sheikh ◽  
Pierre Barroy ◽  
Abdullah Yassin ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
High Speed ◽  
Flank Wear ◽  
Water Soluble ◽  
Cutting Fluid ◽  
Machining Parameters ◽  
Sago Starch ◽  
316 Stainless Steel ◽  
Subtractive Machining

Laser-assisted high speed milling is a subtractive machining method that employs a laser to thermally soften a difficult-to-cut material’s surface in order to enhance machinability at a high material removal rate with improved surface finish and tool life. However, this machining with high speed leads to high friction between workpiece and tool, and can result in high temperatures, impairing the surface quality. Use of conventional cutting fluid may not effectively control the heat generation. Besides, vegetable-based cutting fluids are invariably a major source of food insecurity of edible oils which is traditionally used as a staple food in many countries. Thus, the primary objective of this study is to experimentally investigate the effects of water-soluble sago starch-based cutting fluid on surface roughness and tool’s flank wear using response surface methodology (RSM) while machining of 316 stainless steel. In order to observe the comparison, the experiments with same machining parameters are conducted with conventional cutting fluid. The prepared water-soluble sago starch based cutting fluid showed excellent cooling and lubricating performance. Therefore, in comparison to the machining using conventional cutting fluid, a decrease of 48.23% in surface roughness and 38.41% in flank wear were noted using presented approach. Furthermore, using the extreme learning machine (ELM), the obtained data is modeled to predict surface roughness and flank wear and showed good agreement between observations and predictions.

Chemical Polishing Based Surface Finishing of 3D Printed Steel Components

2018 ◽  
Author(s):  
Pawan Tyagi ◽  
Tobias Goulet ◽  
Nitt Chuenprateep ◽  
Robert Stephenson ◽  
Rudolph Knott ◽  
...  
Keyword(s):  
Surface Roughness ◽  
High Surface ◽  
Roughness Parameter ◽  
Internal Surface ◽  
Chemical Polishing ◽  
Surface Finishing ◽  
Internal Surface Area ◽  
Internal Surfaces ◽  
Optical Profilometer ◽  
3D Printed

Reducing surface roughness is critical for improving the mechanical properties of metal 3D printed components. As produced laser sintered metal 3D printed components suffer from high surface roughness. This problem is enormously big for the 3D printed components with intricate geometries involving a large internal surface area. To address this issue, we performed chemical polishing of the 3D printed 316 steel components. After 30 minutes of chemical polishing the color of 3D printed steel components’ surface became dull grey to bright lustrous. According to optical profilometer study, the surface morphology improved dramatically. The Rq roughness parameter changed from ∼8 um to ∼0.6 um. We also applied chemical polishing on cubical metal 3D printed components with internal surfaces. This surface finishing method was equally effective for the internal and external surfaces.

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