Optimization of process parameters in the RF-DC plasma N2-H2for AISI420moldsanddies

Optimization of process parameters in the RF-DC plasma N2-H2 for AISI420 molds and dies

10.31219/osf.io/kpwuq ◽

2019 ◽

Author(s):

Hengky Herdianto ◽

Dionisius Johanes Djoko Herry Santjojo ◽

Masruroh

Keyword(s):

Process Parameters ◽

Substrate Surface ◽

Xrd Analysis ◽

Iron Nitrides ◽

Dc Plasma ◽

Precision Forging ◽

Optimization Of Process Parameters ◽

Dc Bias ◽

Substrate Surfaces

The RF-DC plasma N2-H2 was used to make precise AISI420 molds and dies have complex textured geometry. The quality of the molds and dies directly affect the quality of the produced parts. The excellent examples of molds were used for injection molding lenses and dies used for the precision forging of automotive drive train components. In this study, a temperature, DC bias, and duration as process parameters of the RF-DC plasma N2-H2 have been optimized for molds and dies fabrication. The mask-less micro-patterned method was utilized to draw the initial 2D micro patterns directly onto the AISI420 substrate surface. The unprinted substrate surfaces were selectively nitrided by the RF-DC plasma N2-H2 at 673 K for 5400 s by 70 Pa with hollow cathode device. Energy Dispersive X-ray was utilized to describe the nitrogen content distribution at the vicinity of the border between the unprinted surfaces. This exclusive nitrogen mapping proves that only the unprinted parts of the substrate have high content nitrogen solutes. XRD analysis was performed to investigate whether the iron nitrides were precipitated by RF-DC plasma N2-H2 in the AISI420.

Download Full-text

TAGUCHI OPTIMIZATION OF PROCESS PARAMETERS IN FRICTION STIR WELDING OF THE AA7010–SiC–Al2O3 HYBRID COMPOSITE

High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes ◽

10.1615/hightempmatproc.2016017921 ◽

2016 ◽

Vol 20 (3) ◽

pp. 185-196

Author(s):

Ponnusamy Gopi Krishnan ◽

K. Siva

Keyword(s):

Friction Stir Welding ◽

Process Parameters ◽

Hybrid Composite ◽

Taguchi Optimization ◽

Friction Stir ◽

Optimization Of Process Parameters

Download Full-text

Optimization of process parameters on machining force and MRR in milling of GFRP composites using grey relational analysis

i-manager s Journal on Material Science ◽

10.26634/jms.1.3.2561 ◽

2013 ◽

Vol 1 (3) ◽

pp. 29-36

Author(s):

M.P. Jenarthanan ◽

◽

N. Naresh ◽

Keyword(s):

Process Parameters ◽

Grey Relational Analysis ◽

Gfrp Composites ◽

Relational Analysis ◽

Optimization Of Process Parameters ◽

Machining Force ◽

Grey Relational

Download Full-text

Optimization of process parameters for rectangular cup deep drawing by the Taguchi method and genetic algorithm

Materials Testing ◽

10.3139/120.110840 ◽

2016 ◽

Vol 58 (3) ◽

pp. 238-245 ◽

Cited By ~ 11

Author(s):

Bora Sener ◽

Hasan Kurtaran

Keyword(s):

Genetic Algorithm ◽

Taguchi Method ◽

Process Parameters ◽

Deep Drawing ◽

Optimization Of Process Parameters

Download Full-text

Optimization of Process Parameters for Production of Pectinase using Bacillus Subtilis MF447840.1

Recent Patents on Biotechnology ◽

10.2174/1872208312666180917094428 ◽

2019 ◽

Vol 13 (1) ◽

pp. 69-73 ◽

Cited By ~ 2

Author(s):

Ram Balak Mahto ◽

Mukesh Yadav ◽

Soumya Sasmal ◽

Biswnath Bhunia

Keyword(s):

Bacillus Subtilis ◽

Process Parameters ◽

Volume Ratio ◽

Optimum Process ◽

Agitation Rate ◽

Fermentation Condition ◽

Optimization Of Process Parameters ◽

Food And Beverage ◽

Pectinase Production ◽

Sterile Product

Background: Pectinase enzyme has immense industrial prospects in the food and beverage industries. Objective: In our investigation, we find out the optimum process parameters suitable for better pectinase generation by Bacillus subtilis MF447840.1 using submerged fermentation. Method: 2% (OD600 nm = 0.2) of pure Bacillus subtilis MF447840.1 bacterial culture was inoculated in sterile product production media. The production media components used for this study were 1 g/l of pectin, 2 g/l of (NH4)2SO4, 1 g/l of NaCl, 0.25 g/l of K2HPO4, 0.25 g/l of KH2PO4 and 1 g/l of MgSO4 for pectinase generation. We reviewed all recent patents on pectinase production and utilization. The various process parameters were observed by changing one variable time method. Results: The optimum fermentation condition of different parameters was noticed to be 5% inoculums, 25% volume ratio, temperature (37°C), pH (7.4) and agitation rate (120 rpm) following 4 days incubation. Conclusion: Maximum pectinase generation was noticed as 345 ± 12.35 U following 4 days incubation.

Download Full-text