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Machine
Shop 3 |
Milling Operations
- Project 1-1
Squaring a Part
| Part # PSR1#1
Part Description: Tap Handle Body Quantity Req.: 2 |
Name _________________________
Date: ________________ |
PLEASE HAVE INSTRUCTOR INITIAL AND DATE GREY BOXES (*), AFTER REQUIRED
OPERATIONS
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Specification
| Step# | Location | Description | Initials | Date |
| 10 | Instructor | Secure stock from Instructor | * | |
| 20 | Vertical Mill | Place stock on parallels in a vise so as to rough machine Datum side B. | ||
| 30 | Vertical Mill | Set Rpm and Feed rate. | ||
| 40 | Vertical Mill | Position cutter for facing cut. | ||
| 50 | Vertical Mill | Lock the appropriate table locks and lock the quill. | ||
| 70 | Instructor | Have instructor check setup. Be prepared to answer questions concerning RPM, feedrate, and machine operation. | * | |
| 80 | Vertical Mill | Take a trial roughing cut on the datum face B. Leave plenty of stock for finishing cuts. | ||
| 90 | Vertical Mill | Deburr part and set up part for next cut according to the information sheet or textbook information on squaring a part. | ||
| 100 | Vertical Mill | Take a trial roughing cut on surface C. Leave plenty of stock for finishing cuts. | ||
| 110 | Vertical Mill | Use a solid square to check perpendicularity. | ||
| 125 | Instructor | Have Instructor check the part for perpendicularity | * | |
| 120 | Vertical Mill | Turn the part and take the remaining 2 sides to size. | ||
| 130 | Vertical Mill | Before doing the ends, indicate the solid jaw of the vise for squareness using the method found in your study materials. | ||
| 140 | Vertical Mill | Have Instructor check your vise indication and vise alignment skill. Be prepared to answer questions about climb vs. conventional cutting directions. | * | |
| 150 | Vertical Mill | Take a clean up side milling cut on the datum face A. Leave plenty of stock for finishing cuts. Check the part for perpendicularity. | ||
| 160 | Vertical Mill | Using the height gage and an angle plate layout the overall length of the part. | ||
| 170 | Vertical Mill | Finish milling the part to length. | ||
| 190 | Bench | Deburr and inspect part | ||
| 200 | Vertical Mill | Follow the same procedure and machine part 2. This time work on maximizing your roughing cuts. | ||
| 190 | Bench | Deburr and inspect part | ||
| 200 | Instructor | Turn in both parts for grading | * |