Machine Shop 3 - Milling Operations

Step#	Location	Description	Initials	Date
10	Instructor	Secure stock from Instructor	*
20	Vertical Mill	Tram, square or align the head on the Vertical mill according to the information sheet or the textbook information.
30	Instructor	Have Instructor check the squareness of the head. Be prepared to answer questions concerning how and why you square the toolhead.	*
35	Instructor	Have instructor write the time in the box.	Time
40	Vertical Mill	Place stock on parallels in a vise so as to be able to rough machine Datum side AD.
50	Vertical Mill	Set Rpm and Feed rate. Remember, this is 1045 steel.
60	Vertical Mill	Position cutter for facing cut.
70	Vertical Mill	Lock the appropriate table locks and lock the quill.
80	Vertical Mill	Take a trial roughing cut on the datum face AD. 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 procedures for squaring a part.
100	Vertical Mill	Take a trial roughing cut on datum surface C. Leave plenty of stock for finishing cuts.
110	Vertical Mill	Use a solid square to check perpendicularity.
120	Vertical Mill	Turn the part and take the remaining 2 sides to size.
130	Vertical Mill	Before doing the slot, indicate the solid jaw of the vise for squareness using the method found in your study materials.
140	Vertical Mill	Using the height gage and an angle plate, layout the slot on both sides of the part.
150	Instructor	Using a piece of paper or an edge finder have instructor show you how to find the edge of the part and the slot location. Have instructor sign off.	*
160	Vertical Mill	Cut the 0.50 slot with a 0.375 endmill on both sides.
170	Vertical Mill	Lay the part down on Datum AD and cut the 0.51 X 0.11 step. Make sure you have clearance above the vise.
180	Vertical Mill	Side mill datum surface B to clean up. Climb or conventional direction?
185	Layout	Layout overall length.
190	Vertical Mill	Machine part to 6.00 inch overall length.
200	Layout	Layout the 0.50 Drilled holes.
210	Vertical Mill	Set up a wiggler center finder. Have instructor show you how to find the center locations of the holes with the wiggler. Have instructor sign off.	*
220	Vertical Mill	Drill Holes.
230	Bench	Deburr and inspect part
235	Time	Write the time in the box.	Time
240	Vertical Mill	Follow the same procedure and machine part number 2.
245	Time	See how much time you can save doing this one. Put your start time in the box.	Time
250	Time	Put your Finish time in the box.	Time
260	Instructor	Turn in both parts for grading	*