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Manf 270 Part Brainstorming (What needs to be present? - WB (Two larger…
Manf 270 Part Brainstorming
What needs to be present? - WB
Two larger connected circles of radius 35mm above top surface. Thickness 10mm. - WB
Rectangular base of 30x100x160mm plus or minus 0.05mm - WB
One smaller hole of diameter 10mm above 35mm hole - WB
Slot on bottom of height 5.00mm +- 0.05mm and width 60.00mm +- 0.01mm - WB
Two large holes of diameter 15mm concentric with 35mm
What about parallelism? - CY
Flatness? - SS
MMC? - KY
How to make each feature? - WB
The holes
Drill Press Machine?
Pro: No programming time required. Cons: More operator skill required. Maybe more defects. - WB
CNC Machine
Pro: Less Operator Machining Skill Required. Maybe less defects. - WB
Surfacing the sides - WB
Turning Operation on Lathe + edging tool - WB
Con might require more adjustment -- harder to fixture than vice. - KY
Con: Can we establish parallelism this way? - KY
No idea... - WB
Milling Machine + Face Milling Cutter - CY
Pro: Same machine as t-slot (less physical moving of part between machines - CY
Cut sides with water jet? - SY
No, not accurate enough :/ - WB
The slot on bottom - WB
T-Slot Milling Cutter - WB
Milling Machine - KY
The flatness/parallelism - WB
Not Sure? We'll ask Okanagan Manf 230 TA - WB
Followup: Paralleism is done with parallism bar in vice and tappign lightly with hammer to set - WB
What kind of fixture to hold the part? - WB
Vice? - WB
Easier to find -- off the shelf part - SS
Custom Fixture? - KY
Requires custom-made // more R&D time - CY
The larger diameter conjoined circles on top surface? - WB
Start with 40mm thickness and remove material to 30mm outside of circle? - WB
Okay, what machine or tool? - SY
CNC Machine? SS
Drill Press? - KY
3D Printing the Whole Part - SY
How do we inspect/measure the part during creation on operation sheet? - WB
Dial Indicator for Parallelism and Flatness - SY
Digital Caliper for Tolerance - SY
Quick and Simple Inspection by Machine Operator - SY
Go / No-Go Gauge for Hole Sizes - SY
What about Hole Positions? - SY
Functional Gauging for MMC - JY
More detailed Inspection later by Quality Control Engineer - JY
How do we inspect the part during QA check by supervisor or QA agent? - WB
CMM - SY
High Accuracy - SY
Takes some time - SY
Machine Requirement - SY
Digital Caliper - JY
Fast Measurement - JY
Less Accuracy than CMM - JY
Easily Accessible - JY
Height Gauge, Surface Plate and Test Indicator for Flatness and Parallelism - SY
Surface plate uses Datum B for reference to measure flatness of Datum A -> No - SY
CMM for Flatness - SY
Functional Gauging - JY
Applies for Positioning at MMC - JY
Easily Accessible - JY
Quick Check - JY
What material? - WB
Metal?
Steel?
Pro: Durable and strong - SS
Con: Expensive in large volumes - SS
Con: Machining requires greater hardness/expense bit - SS
Aluminum
Pro: Inexpensive - SS
Con: Less strong - SS
Pro: Highly flexible/more ductile - WB
Iron - KY
Maybe Strength requirement is high? T-slot seems like it connects to another part because 0.01 tolerance but thin edges to wall. If it's too weak, maybe a part failure will at T-slot location - WB
Steel or iron has best properties then? - WB
Yes, I agree. Let's go with Steel. ANSI standard? - WB
Operation Sheets - WB
What do you want on the sheet table?
RPM - CY
Yes
Feed - CY
Yes
Machine Name - WB
Yes
Tool Name - WB
Yes
Title for Operation? All caps - WB
Yes
Number for operation (in case sheets get out of order - WB
Yes
Datums/dimensions for operation - WB
Yes
Anything else?
Name of person who made operation sheet? - KY
I don't think this is necessary
I agree - SS
Let's not put this - SY
Visual info - WB
Model View - CY
3 orthographic or just 1-2? - WB
3 views
PRO: More clear dimensions and more visual information - WB
Con: More work and slightly more cluttered - WB
2 views
Con: May be less clear to operator. Part may not be fully defined because not entirely symmetrical - WB
Pro: Less cluttered - SS
SolidWorks Assembly Photo? - WB
Yes! - KW
It will look very nice - SS