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© 2024 Kazuhiro Saitou, all rights reserved. ME452/ISD528: (Advanced) Design for Manufacturability Winter 2024 HW#1 (45 points) You must include the signed Honor Code affidavit as shown below in the homework submission. Problem 1 (16 pts) Answer the following questions on FAST diagram as discussed in the lecture. (a)
A team of system designers come up with the four (4) functives that describe a function of a robotic arm used to remove formed panels from sheet metal stamping die in the press shop: Lift Object, Remove Object, Move Object, Release Object. Arrange these functives in a parent node and three children nodes branched from the parent, by filling the blank branch shown in the figure below. (10 pts) (b)
The figure below is a partial FAST diagram for the hair dryer. Identify three (3) different types of errors in this FAST diagram. (6 pts) I have neither given nor received aid on this assignment, nor have I concealed any violations of the UM College of Engineering Honor Code. Name: ____________________ UMID: ___________ Signature: __________________ Date _______
© 2024 Kazuhiro Saitou, all rights reserved. Dry hair
Blow air
Suck air
Direct air
Heat air
Contain air
Add heat
Control airflow
Guide airflow
Control fan
Change mode
Assure dependability
Prevent electrocution
Assure convinience
Enhnace product
Please senses
Adjust heat-level
© 2024 Kazuhiro Saitou, all rights reserved. Problem 2 (14 pts) Answer the following questions on rough cost estimation for use in BOM. (a)
What is the primary manufacturing process of the TV remote casing part shown below? (4 pts) (b)
Estimate the per-part cost of the part in (a) by looking up a similar part in Custompart.net https://www.custompartnet.com/partsearch. Assuming the additional information shown below. Attach the screenshot of the page in Custompart.net you have looked up. (10 pts) •
Material: Acrylonitrile Butadiene Styrene (ABS), Impact Grade, Molded •
Production Quantity: 65000 •
Part size: 130mm x 30.5mm x 4.5mm •
Max wall thickness: 1.5mm •
Tolerance: Moderate precision •
Surface roughness: Normal polish
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© 2024 Kazuhiro Saitou, all rights reserved. Problem 3 (15 pts) Consider a family of three (3) Lego
TM
figures shown in the table below, where each figure is assembled of five (5) types of components: Head, Upper Body, Magic Item, Magic Wand, and Lower Body, together with their varieties shown in the rows. Upper Magic Wand and Lower Body are shared among three variants, Cho, Hannah, and Drago, whereas Gold tie (an option of Upper Body) and Book (an option of Magic Item) is shared between Cho and Hannah. Final Assy Variant 1: Cho Variant 2: Hannah Variant 3: Draco Head Option 1: Cho Option 2: Hannah Option 3: Draco Upper Body Option 1: Gold Tie Option 2: Gray Tie Magic Item Option 1: Book Option 2: Apple Magic Wand Lower Body (a)
Draw the product family assembly diagram of the Lego
TM
figure family, for the assembly sequence of Lower Body, Upper Body, Head, Magic Item, Magic Wand, and Final Assy, by filling the space below. (5 pts)
© 2024 Kazuhiro Saitou, all rights reserved. (b)
Enhance the delayed differentiation of the Lego
TM
figure family by changing the assembly sequence in (a). Draw the resulting product family assembly diagram for the new assembly sequence, by filling the space below. (10 pts) variety Lower Body Upper Body Head
Magic Item Magic Wand Final Assy 1
3
variety Lower Body Final Assy 1
3