OCTOBER 19-20, 2012 - YMCA University of Science & Technology

Proceedings of the National Conference on
Trends and Advances in Mechanical Engineering,
YMCA University of Science & Technology, Faridabad, Haryana, Oct 19-20, 2012
45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
1 2 3
Figure 2a.ParetoAnalysis diagram
Taking total rejection along y axis, Cause of failure (defects) along x axis respectively
(1) Welding defects Problem
40% of items are rejected
PARETO ANALYSIS
AT TFI Ltd
(2) Machining problems
30% of items are rejected
(3) Production rate delay
5% problems are created
Figure 2b.Frame work of Pareto Analysis
3.4 Data analysis
On the basis of this study and implementation in TFI ltd.The problems of company TFI ltd can also be find out
with the help of cause and effect diagrams. .Welding defects, Machining defects and Production rate delays are
the problems which are caused due to various key items. Cause and effects diagrams are very helpful to find out
the real cause of problems as shown in fig 3a, 3b and 3c.
-
Inadequate skill of worker
Careless worker
Old welding m/c without indicators
Welding defects
High flow of inert gas
Insufficient value of V, I
Poor edge preparation
Figure 3a. Cause and effects diagrams for welding defects
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