Xun #2 Flashcards
1
Q
“Setup/Fixture/Cutting Tools” is the name given to the fifth step in developing a process plan. What are 4 major considerations during setup planning, and what are the main criteria by which we making our decisions?
A
- Number of setups
- Sequence of setups
- Grouping of operations
- Machining datum
Part features/geometry, dimension/datum, and tolerance requirements
2
Q
What are the four datum types? What requirement do we impose on datum in manufacturing?
A
- Functional/design/dimensional/tolerance datum
- Machining datum
- Inspection datum
- Assembly datum
All datum must be machined surfaces and/or have a good surface finish
3
Q
What four rules do we use when choosing a datum for finish-machining?
A
- Datum consistency
- Datum consolidation
- Datum reciprocation
- Self-datum
4
Q
Name each of the following tools
A
5
Q
Name each of the following tools
A
6
Q
Complete the following:
- A drill can only cut ______ to make a hole
- A blind hole will always have a _____ ______
- Twist drills cannot be used for ______ or ___-______operations following a _____ operation
A
- A drill can only cut vertically to make a hole
- A blind hole will always have a conical bottom
- Twist drills cannot be used for finishing or semi-finishing operations following a roughing operation
7
Q
Complete the following:
- Countersinking is often performed after drilling to provide space for _____________________________
- A countersink tool enters the workpiece axially and enlarges the top portion of an existing hole to a ____-_____ _____
A
- Countersinking is often performed after drilling to provide space for the head of a fastener, such as a screw, to sit flush with the workpiece surface
- A countersink tool enters the workpiece axially and enlarges the top portion of an existing hole to a cone-shaped opening
8
Q
Complete the following:
- Counterboring is often performed after drilling to provide space for the _______________________________
- A counterbore tool is used to ________________ of an existing hole to the diameter of the tool
- The counterboring tool has a ____ on the end to _____ it straight into the existing hole
A
- Counterboring is often performed after drilling to provide space for the head of a fastener, such as a bolt, to sit below the surface of a part
- A counterbore tool is used to enlarge the top portion of an existing hole to the diameter of the tool
- A counterboring tool has a pilot on the end to guide it straight into the existing hole
9
Q
What tools would you use to perform these operations?
A
Face/End Mill/Slot Drill
10
Q
Complete the following:
- A face mill machines a ___ ______ of the workpiece in order to provide a smooth finish
- _____ ______ axially and sideways
- A face mill cutter is not to be used to cut ______
- A face mill may be used for ___-_____, ______as well as _______operations
A
- A face mill machines a flat surface of the workpiece in order to provide a smooth finish
- Multiple passes axially and sideways
- A face mill cutter is not to be used to cut vertically
- A face mill may be used for semi-finishing, finishing as well as roughing operations
11
Q
Complete the following:
- An end mill mainly uses its peripheral teeth to ___ ______
- Common features that can be machined are ___, ___ ___ and ___ _____
- ______ ______ axially and sideways
- An end mill cutter is not to be used to cut ______
- An end mill may be used for ___-_____, ______ as well as _______operations
A
- An end mill mainly uses its peripheral teeth to cut sideways
- Common features that can be machined are profile, open slot and open pocket
- Multiple passes axially and sideways
- An end mill cutter is not to be used to cut vertically
- An end mill may be used for semi-finishing, finishing as well as roughing operations
12
Q
Complete the following:
- A slot drill may cut both _____and ______, though it is not recommended to replace a ____ ____for holemaking operations
- Features that can be machined: (_____) ____, (_____) _____
- _______ _____ axially and sideways
- A slot drill may be used for ____-_____, ______as well as _______operations
A
- A slot drill may cut both vertically and sideways, though it is not recommended to replace a twist drill for holemaking operations
- Features that can be machined: (closed) slot, (closed) pocket
- Multiple passes axially and sideways
- A slot drill may be used for semi-finishing, finishing as well as roughing operations
13
Q
Complete the following:
- A chamfer end mill makes a ______ cut along an edge of the workpiece or a feature to create an _____ _____, known as a chamfer
- This chamfer, typically with a __ degree angle, can be machined on either the ______or _____of a part and can follow either a _____or _____ path.
A
- A chamfer end mill makes a peripheral cut along an edge of the workpiece or a feature to create an angled surface known as a chamfer
- This chamfer, typically with a 45 degree angle, can be machined on either the exterior or interior of a part and can follow either a straight or curved path.
14
Q
Complete the following:
- A borer enters the workpiece _____and cuts along an _____surface (by profiling sometimes) to form different features
- The boring tool is a ____-_____ cutting tool, which can be set to cut the desired diameter by using an ______boring head
- Boring is commonly performed after ____ _ ___in order to ____ the diameter or obtain more _____ _______
A
- A borer enters the workpiece axially and cuts along an internal surface (by profiling sometimes) to form different features
- The boring tool is a single-point cutting tool, which can be set to cut the desired diameter by using an adjustable boring head
- Boring is commonly performed after drilling a hole in order to enlarge the diameter or obtain more precise dimensions
15
Q
Complete the following:
- A reamer always enters the workpiece _____to _____an existing hole to the diameter of the tool
- Reaming removes a _____amount of material and is often performed after _____to obtain both a more ______ _____and a _____ _______ _______
A
- A reamer always enters the workpiece axially to enlarge an existing hole to the diameter of the tool
- Reaming removes a minimal amount of material and is often performed after drilling to obtain both a more accurate diameter and a smoother internal finish
