2.4 Lab - Machining

---

2.4.1 Theory

2.4.2 Procedure

1. Acquire a piece of round and rectangular stock from Mr. Bero. Drawings will be prepared based upon these pieces.

2. Prepare mechanical drawings for these pieces as directed below. Ideally both will be prepared on A4 paper, but other sizes will be accomodated by permission. Various CAD packages and sketching packages are available. In general drawings should,

- include a title block and borders

- be laid out appropriately

- indicate materials

- tolerances are expected for ECE students and GD&T for ME/MO/PDM

Note: ME / PDM, and MO students are expected to hold a tolerance of +/- 0.005".

3. The turned (round) part drawing should have the following features,

- the part should be faced or cutoff

- the part should be center drilled, or drilled

- the outside should be turned for a length of at least 1"

4. The rectangular part drawing should have the following features,

- there should be one face with a slot cut

- the width of the slot must be a non-standard size.

5. Speeds and feeds should be selected for machining.

6. After approval the drawings will be manufactured in the machine shop under the supervision of Mr. Bero.

7. Verify the conformance of the parts to the drawings using metrology tools.