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