In: Mechanical Engineering
1.Why is the hole missing ?
•Operator error.
2.Why did the operator make the error ?
•He wasn’t inspecting the parts as required.
3.Why wasn’t he inspecting the parts ?
•The supervisor told him we are behind in the shipping
schedule.
4.Why are we behind in the shipping schedule ?
•The raw material was late in arriving.
5.Why was the raw material late in arriving ?•The
supplier underestimated the lead time.
I want to ask him different answers in the same way
Please ?
Answer:
1ST ITERATION AS GIVEN BY USER
1.Why is the hole missing ?
•Operator error.
2.Why did the operator make the error ?
•He wasn’t inspecting the parts as required.
3.Why wasn’t he inspecting the parts ?
•The supervisor told him we are behind in the shipping
schedule.
4.Why are we behind in the shipping schedule ?
•The raw material was late in arriving.
5.Why was the raw material late in arriving ?
•The supplier underestimated the lead time.
2ND ITERATION
1.Why is the hole missing ?
•Drilling machine error
2.Why did the Drilling machine error occure?
•Due to change of CNC code during lunch break
3.Why was CNC code changd during lunch break ?
•Due to some error occured before continuos run of machine
4.Why the error occured in CNC machine ?
•Different material combination with different holes was produced
and some new requirement came
5.Why new requirement came suddenly
It was not informed before an dwas not corrected by the correct supervisor
3RD ITERATION
1.Why is the hole missing ?
•Drill bit damage
2.Why drill bit damaged ?
•Due to continuos mass production without changing the drill
bit
3.Why drill bit was not changed?
•Operator forgot to change the drill bit
4.Why operator forgot to change the drill bit?
•He was busy in taking care of other line where the supervisor was
not available
5.Why operator was busy in other line ?
•His counterpart from other lineasked him to take care of his line for minsas he went for washroom
4TH ITERATION
1.Why is the hole missing ?
•Due to machine interruption
2.Why machine interruption occured ?
•Due to low coolant level of the machine
3.Why coolant level was low in the machine
•As machine have manual coolant filling so machine operator
forgot
4.Why operator forgot to fill the coolant?
•He went for other machine problem check
5.Why he only went for other machine problem check
•There was only one operator available that time for the machines maintenance