• V. SAI SATHWIK
• DR K. VENKAT SUBHAIH
• K. CHAITANYA PRANAVI

DMAIC approach is a business strategy used to business profitability and efficiency of all operation to meet customer needs and expectations. The applications of six sigma methodology to the manganese steel casting process in foundry to minimize the defects in this process. The primary tool used in the process map and cause and effect diagram.an attempt has been made to apply DMAIC (define, measure, analysis, improve, control) approach. the emphasis was laid down towards reduction in defects (blow holes, shrinkage & draw, cracks, slag inclusion, surface roughness) occurred in manganese steel casting by controlling the parameters with DMAIC technique. six sigma is statistical and scientific methods to reduce the defect rates and achieve improved quality. Finally, we have changed the bedding sand from silica sand to olivine sand of the manganese steel casting.so that we have reduced the defects of manganese steel casting mainly the surface roughness. Surface roughness defect occurs due to the reaction between the silica sand and manganese and comes to MnO. Due to the surface roughness is high and its difficult for machining. So that we have introduced olivine sand instead of silica sand. After introducing olivine sand, the defect rate is decreased and the production rate is increased

Manganese Steel Casting, DMAIC Tool, Six Sigma

"REDUCING THE DEFECTS OF MANGANESE STEEL CASTING BY IMPLEMENTATION OF DMAIC TOOL OF SIX SIGMA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.674-683, June 2019, Available :http://www.jetir.org/papers/JETIR1908099.pdf

"REDUCING THE DEFECTS OF MANGANESE STEEL CASTING BY IMPLEMENTATION OF DMAIC TOOL OF SIX SIGMA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp674-683, June 2019, Available at : http://www.jetir.org/papers/JETIR1908099.pdf