Assignment | What Is Process Mapping ?

Qusetion-1
1. For the mapping of the present processes of manufacturing, present a door step
value stream map.

SUPLIERS: KEN-
TISH TUBE SYS-
TEM and Essex
Coating Limited
16 weeks
order Production
Control MRP
60 days
order Customer
2 weeks or-
der
2 weeks
order
Daily Priorities
1 X 2 Weeks Shop Order Daily
Shipment 1 X Day
20 Days
uncut
material
Cutting Welding 1 Welding 2 Deflash Painting
Outside
Contract
Assembly Shipping
5 days 3 days 3 days 5 days 6 days 4 days
C/T-15 sec C/T-15 sec C/T-30 sec C/T-30 sec C/T-195
Sec
c/p-15
min(L) c/o- 10 sec c/o- 10 sec c/o- 10 sec C/O-10
Min
20 Days
Raw Ma-
terial
c/o-60
min(D)
c/p-15
min(L)
c/p-15
min(L)
c/p-15
min(L)
Reliability-
100%
Reliability-
100%
c/o-60
min(D)
c/o-60
min(D)
c/o-60
min(D) Shifts: 2
Shifts: 2 Reliability-
80%
Reliability-
80%
Reliability-
100%
Shifts: 2 Shifts: 2 Shifts: 2 Total Lead Time-48 days
Process Time-315 Sec
Machining
1

C/T-30 Sec
C/O-120
Min
Reliability-
100%
Shifts: 2 5 days 3 days 3 days 5 days 2 days 6days 4 days
30 sec 30 sec 30 sec 30 sec 195 sec

Qusetion-2
There are eight primary questions relating to the future state design. Please answer with il-
lustration:
Q1. Explain Takt time?
The term, Takt time denotes routine production time taken for every regular customer demand
and is defined by the below formula: -
Takt time= The routine available production time taken /The regular demand of the cus-
tomer
To calculate the same, we shall first look at the data of FEI company: -
No. Of working days in a month= 20 which is equivalent to the working days per week
wherein every day two 8 hours shifts.
Available production time = 7 hours and 30 minutes allowing for 15 minutes break in each
shift=7.5 hrs./shift
Available production time in seconds=7.5(hours/shift) *3600(seconds)
=27000(seconds/shift)
Hence, there being 2 daily shifts, the daily production time= 27000*2=54000(seconds/day)