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Prakasham, G.
- A Review on the Effect of Various Process Parameters in Cold Metal Transfer (CMT) GMAW Welding
Authors
1 Dept. of Mechanical Engineering, M.V.S.R Engineering College, IN
2 Dept. of Mechanical Engineering, UCE, Osmania University, IN
3 Prototype Development & Project Engineering Division, CSIR-IICT, IN
Source
International Journal of Engineering Research, Vol 5, No SP 2 (2016), Pagination: 432-435Abstract
Cold metal transfer (CMT) is a modified metal inert gas welding process based on short- circuiting transfer process, characterised by low heat input and no- spatter welding. The CMT process is used to join various similar and dissimilar metals with good performance. The aim of this paper is to present a review the changes in various process parameters on weld attributes in cold metal transfer welding (CMT).Keywords
Cold Metal Transfer, Short Circuit Transfer, ARC Length, Wire Speed.Full Text
- Development of Factorial Model for Green Compression Strength of Moulding Sand
Authors
1 Department of Mechanical Engineering, MVSR Engineering College, Nadergul, Hyderabad, IN
Source
Manufacturing Technology Today, Vol 18, No 11 (2019), Pagination: 26-30Abstract
Sand casting process is one of the most versatile process in manufacturing process where molten metal is poured into the expendable sand mould cavity to get complex shapes. In this process green compression strength is considered to be one of the important mechanical property for mould preparation in sand casting. These moulding sand properties play a vital role in determining the optimum moisture content for making green sand casting mould.
To optimize green compression strength the process variables like clay, moisture and sand composition are varied by selecting design of experiments (DOE) technique to find out effect of input parameters on green compression strength.
The present work aims to determination of green compression strength by varying silica sand, clay and water. Using factorial method number of experiments to be conducted is determined and design matrix is created. Using design matrix regression coefficients are calculated and student’s t-test is carried out to check significance of each regression coefficient. Contribution of each factor on output is determined by analysis of variance (ANOVA).
Keywords
Green Compression Strength, ANOVA, DOE, Sand Casting.
References
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- Khare, Manu; Optimization of sand casting parameters using factorial design, 'International Journal Of Scientific Research', vol. 3, no. 1, January 2014.
- Gajanana, S: Optimization of Process Parameters for Hero Honda Exhaust Valve using Design of Experiments, 'Proceeding of National Conference on Recent Advances in Computer Aided Engineering', Osmania University, Hyderabad, March 3rd & 4th , 2006.
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