Assignment | How do you present a value stream map?

Question-1
1. Present a map of the value stream giving the processes of door-to-door service of the
current manufacturing work.

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
The eight important questions given below for the future state design are to be answered.
Q1. Elaborate the concept of Takt time?
Assuming the monthly average, 20 working days taken by the FEI Company, comes to 5 work-
ing days per week, wherein everyday there are two shifts of 8 hours, and each of the shifts has
two breaks of 15 minutes which ultimately can result in the time of production, availability of 7
hours and 30 minutes in each shift.
Available Production Time = 7.5 Hours/shift
The production time that can be accessed can be converted from hours to seconds by multiplying
with 3600
Available Production Time = 7.5 (hours/shift) * 3600 (seconds)
= 27000 seconds/shift.
For calculating the daily available time, available production time has to be multiplied with num-
ber of shifts which is 2,
Available Production Time= 27000 seconds/shift *2 = 54000 seconds/day.
24000 per month hydraulic control sections are needed by the customer. In order to quantify the
customer’s regular needs for hydraulic control divisions, it has to be divided by the number of
Company’s working days which is 20.