23-09-2014, 04:20 PM
To Eliminate customer Complaints and to stop rejection in knuckle pivot PIN due to low hardness
SUBMITTED BY:
· NAME: SAMEER BHATT
· ROLL NO: 100761133087
· BRANCH: MECHANICAL ENGG.
· COLLEGE NAME: Sri Sukhmani Institute of Engineering & Technology, Dera Bassi
PROJECT TITLE
TO ELIMINATE THE CUSTOMER COMPLAINT AND TO CONTROLLING REJECTION IN KNUCKLE PIVOT PIN DUE TO LOW HARDNESS
PRODUCT SPECIFICATION
1. COMPONENT NAME – KNUCKLE PIVOT PIN
2. MATERIAL – STEEL GRADE EN 47
3. CUT WEIGHT- 5.00 KG
4. NET WEIGHT - 3.76 KG
5. HEAT TREATMENT–HARDENED&TEMPERED
6. CUSTOMER NAME : FAIVELEY TRANSPORT
· REASON FOR REJECTION
CUSTOMER COMPLAINT RECEIVED IN KNUCKLE PIVOT PIN DUE TO LOW HARDNESS.
KNUCKLE PIVOT PIN
FINDINGS FOR CAUSES OF REJECTION
It was found that the pivot pin was rejected due to improper heat treatment.
A meeting was held by all the technical persons of the company and the reasons for rejection are writted down and a fish bone diagram is made accordingly.
WHY WHY ANALYSIS
The graph given below shows the process capabilities before and after CAPA.The given below data is taken from the SPC software and study was done accordingly.
BEFORE & AFTER STUDY
BEFORE
AFTER
PROCESS VALIDATION
The above given sheet shows the observed hardness after the heat treatment process and it was found that observed hardness meets the demand of customer.
FINAL RESULTS
1. CUSTOMER SATISFACTION INCREASED.
2. INCREASE PROCESS CAPABILITES.
3. REDUCE REWORKING.