3. Manufacturing process sequence
- What is your primary process? Why did you choose this process?
We make Structure Because the basic structure of the product.
- What is your secondary process? Why did you choose this process?
We use Electric jigsaw for process to cut plywood. Because it easy to built a wood
product.
- What is your tertiary process? Why did you choose this process?
We make polishing for Eliminate the inconsistencyof the wood from the
sawmill.
4. Product function
- With your selected material, how is your material
compatible with product geometry and
manufacturing processes?
Wood is a material suitable for geometric shapes. The ease
of forming of the product.
- What is the normal applied load to the material? Can
your material take such load?
Yes, our product can take a load for about 30 N
5. Product function
- What is the normal ambient conditions to your
material?
When the wood is moisture or water will cause swelling of
the wood.
- With your selected manufacturing process, how is
your process compatible with the product geometry?
Yes. The wood can drilling and cutting that can be
formed easily.
6. Manufacturing cost
The material costs per part can be calculated as:
Let M = total materials costs (raw, bulk)
q = production quantity
The material costs per part, cM is
cM = M/q = (cost/weight x weight) / number of parts
Let
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
7. Then the material cost per part, cM is
cM = cw (wp + ww ) = cw (wp + awp )
cM = cw *wp (1+ a)
Tank
cM = cw *wp (1+ a)
cM = (36baht/1 piece)*(2 piece/ part)
= 72 baht/part
Body
cM = (42baht/1 piece)*(1 piece/ part)
= 42 baht/part
8. The tooling cost per part, cT is
Let
T= total cost of molds, fixtures per production run
q = number of parts per run
Then
cT = T/q
=0
9. The processing cost per part, cP is
Let
ct = cost per hour, (machine rate + labor)
t = cycle time (hours per part)
then cP = ct t
Tank
c P = ct t
= ( 10 baht / hr)*(1 hrs/part)
= 10 baht / part
Body
= ( 10 baht / hr)*(1.5hrs/part)
= 15 baht / part
10. As a result, total cost per part is
c = cM + cT + cP
c = cw wp (1+ a) + T/q + ct t
c = cM + cT + cP
= (114 + 0 + 25) baht/part
= 139 baht/part
