3. Manufacturing process sequence
- What is your primary process? Why did you choose this process?
- What is your secondary process? Why did you choose this process?
- What is your tertiary process? Why did you choose this process?
4. Product function
- With your selected material, how is your material compatible
with product geometry and manufacturing processes?
- What is the normal applied load to the material? Can your
material take such load?
- What is the normal ambient conditions to your material?
- With your selected manufacturing process, how is your process
compatible with the product geometry?
5. Manufacturing cost
- Show a calculation to obtain the total cost per part of your product
Total manufacturing cost (TMC) = Material (M) + Tooling (T) + Processing (P)
The material costs per part, cM is
cM = cw wp (1+ a)
cw = material cost per unit weight
wp = weight of finished part
ww= weight of wasted material, scrap
a = ratio of wasted material weight / finished weight
= ww / wp
a = (0.2/0.8kg) =0.25
cM =(45bath/kg)(0.8kg/past)(1+0.25)
= 45 bath/past
6. Manufacturing cost
The tooling cost per part, cT is
cT= T/q
T= total cost of molds, fixtures per production run
q = number of parts per run
cT=0
cP = ct t
ct = cost per hour, (machine rate + labor)
t = cycle time (hours per part)
cP = (60bath/hour)*(1/6)(hour/past)
=10bath/past
c = cM + cT + cP
= (45 + 0 + 10)(bath/past)
= 55 bath/past
