MECH REVIEW MIDTERM Manual Mills 201 and Mills Operation 251 and Manual Mill setup 221
What features of the mill take help to keep it straight and parallel to the machine's knee?
ways
Which of the following specifications do blueprints include?
workpiece material
Which of the following statements about cutting tool selection is true?
stainless steel workpieces require harder, more expensive tooling
Across what should an operator move an indicator to check vise alignment?
the inside length of the vise jaw
What is the most common workholding device used on the mill?
vise
When milling a groove in the underside of a rectangular workpiece, what cutting tool should an operator use for finishing the groove walls?
end mill
What object is threaded through the top of the mill head to secure tolldholder?
Drawbar
What is the purpose of the speed change handwheel? The speed change handwheel:
Makes variable speed changes within a range
Along which Cartesian axis does a mill's knee and spindle move vertically?
Z axis
What does an operator use a precision machinist square for in mill setup?
aligning the workpiece
Backlash affects the accuracy of which readout component?
analog dial
After drilling holes in a workpiece, what tool should the operator use to eliminate burrs or sharp edges around the hole?
chamfer
What action should an operator take after making any adjustment to correct mill head alignment?
check alignment with the dial indicator
What tool holder is a split-sleeve device that expands or contracts to grip the cutting tool?
collet
what type of milling feeds the workpiece against cutting tool rotation:
conventional millin
Whcih of the following statements about part zero is true? Part zero:
creates a reference point for measuring all part features
What two factors determine cutting speed? Operators determine cutting speed using spindle rpm and:
cutting tool diameter
After repositioning a workpiece in a vise, wha tool can an operator use to ensure the workpiece is secure?
dead blow hammer
What device can an operator use to check mill head alignment?
dial indicator
Which of the following uses encoders to sense and record milling machine movements and positions?
digital readout
What type of milling creates a broad, flat surface, and is generally used to perform roughing cuts?
face milling
Squaring which two sides of a rectangular workpiece requires the operator to reorient the workpiece vertically in the vise?
fifth and sixth
How should the flutes of an end mill relate to the dimensions of the workpiece surface to be milled?
flutes mus be longer than the surface
Which type of milling cutter is used in straddle milling operations
full side cutter
When preparing a square the first surface of a rectangle workpiece, where should the machinist touch off the too? For squaring, touch off the tool on the workpiece:
high end
Milling machines can perform which of the following cutting operations?
holemaking
Which component on the vertical mill supports the saddle and table from underneath and moves up and down?
knee
When aligning the tool to begin face milling a step on the top surface of a rectangular workpiece, what precaution should the operator take? The operator should...
leave a small approach distance
What factor affecting cutting speed selection describes the ease of cutting a workpiece material?
machinability
Which cutting fluid application method sprays both air and cutting fluid onto the tool and workpiece?
mist cooling
What results from an operator stopping the feed in the middle of a cut?
poor workpiece surface finish
What two mill head controls are used to automatically adjust spindle feed?
quill feed selector and power feed engagement crank
Which of the following measurements is necessary to locate part zero using an edge finger? Operators must measure the pin's
radius
Which of the following statements about manual milling is true? Manual milling:
requires an operator to control the machine
Which manual mill component allows the worktable to move side to side and back and forth?
saddle
What process may include aligning the various milling machine components and selecting cutting tools?
setup
Which of the following cutting operations is most likely to come first when machining a part?
squaring
Which type of milling operation performed on a horizontal mill produces a flat top surface?
slab milling
Manual milling machines are classified by the orientations of what machine component?
spindle
What machine component on the manual mill is parallel to the Z axis?
spindle
Which variable does the micrometer adjustment nut control?
spindle depth
Which variable do the forward-reverse switch and hi-neutral-lo level control?
spindle rotational direction