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Chp 7Production Tools and Their Safe
UseSpring 05
Foundations of Engineering and Technology
Objectives:
1. Categories of production tools used in technology
2. Characteristics of Machine tools
3. Identify major types of machine tools
4. Describe the major types of energy processing tools and machines
5. Describe the major types of information processing tools and machines
6. List guidelines for using tools and machines properly and safely
Materials Processing Tools and Machines-pg 127
• Machine Tools-machines used to make other machines
• Characteristics of Machine Tools:– A method of cutting materials-cutting tool– A series of motions between tool and material– Support of tool and workpiece
Cutting Tools-pg 128
Two Basic Types-
1. Single Point-knives, chisels and planes
2. Multipoint-saw blade
Motion-pg 129• 2 Main Types
– Cutting-action that causes material to be removed from the work
– Feed-brings new material to the cutting tool• Kerf-the slot where the material has been cut
away• All feed can be categorized as: pg 135
– Rotating-– Reciprocating– Linear
Types of Machine Tools-pg 131• 6 Categories:
– Turning-use a process in which a workpiece is held and rotated on an axis-lathe
– Sawing-use teeth to cut material-crosscutting, ripping, resawing, grooving, chamfering.
• Three Types of Saws:– Circular-crosscutting, ripping and combination cutting– Band-continuous strip with teeth on one edge– Scroll-up and down motion-teeth on one edge
– Drilling-produce or enlarge holes via a rotating cutter• Types of operations-
– Drilling-producing straight, cylindrical holes– Counter boring-producing two holes around the same center point – Countersinking-producing a beveled outer portion of a hole– Reaming-enlarging the diameter of a hole
– Shaping-metal working machine tools product flat surface– Planing– Grinding-remove very small pieces with random cutting surface
Energy-Processing Converters
Energy-Processing Converters
• Law of Conservation of Energy-energy cannot be created or destroyed…it can only change form
• Conversions:– Mechanical to electrical– Electrical to mechanical– Radiant to thermal– Heat to mechanical
Steam Engine
• Early 1700’s• Major impact from Industrial Revolution• Allowed control of:
– Intensity, duration, and location of power
• Major impact on civilization as we knew it
Internal Combustion Engine
• Developed late 1800’s• Powers vehicles• Use gasoline and/or diesel• Two Stroke or Four Stroke
– Stroke-movement of a piston from one end of a cylinder to another
– Cycle-complete set of motions needed to produce a surge of power
– Intake, Compression, Power and Exhaust
Electric Motor
• Most universally used source of power• Based on the laws of magnetism:
– Like poles repel, unlike poles attract– Current flowing in a wire creates an
electromagnetic field around the conductor
Information Processing Machines
Communication Methods
• Basic to all modern communication systems are printing, telecommunications and computer
Printing
• Moveable type• 1400’s• First book he printed was the Bible• Johann Gutenberg
Telecommunications
• Telephone-Alexander Graham Bell– Hardwired-each telephone has a separate
wire to transmit the signal
• Radio-Marconi– 1901– Used for ships to send danger signals
Computers5 parts:
1. Input-keyboard, storage devices, modems, mice, other computers+
2.Processing-
1.CPU-central processing unit
2.RAM-Random Access Memory-short term temporary memory-NOT the hard-drive
3.Output
4.Memory
5.Program
What makes the Manufactured GoodsWhat makes the Manufactured Goods
Flow Chart Symbols
• Operation - Object is changed in its chemical or physical makeup. It is assembled or disassembled.
• Transportation – Object is moved from one place to another
• Inspection – Quality of the object is inspected
• Delay – Object is held awaiting the next operation
• Storage – Object is placed in a protected location
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
The Table Saw
Purpose:• Used to rip or cut
stock to width
Use for our product: • Used to cut the
rough width of the plastic
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
Cut plastic to rough lengthCut plastic to rough length
The Compound Miter Saw
Purpose:• Used cut materials
to length and width
Use for our product: • Used to cut the
rough length of the plastic
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
Cut plastic to rough lengthCut plastic to rough length
Trim to actual sizeTrim to actual size
The JointerPurpose:• Used to join edges or square stock
Use for our product: • Used to trim edges to actual size
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
Cut plastic to rough lengthCut plastic to rough length
Trim to actual sizeTrim to actual size
Drill holes for the clipDrill holes for the clip
The Drill Press
Purpose:• Used to drill holes
Use for our product: • Used to drill holes
for the clip
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
Cut plastic to rough lengthCut plastic to rough length
Trim to actual sizeTrim to actual size
Cut corners to round Cut corners to round
Drill holes for the clipDrill holes for the clip
The Corner Rounder
Purpose:• Cut round corners
of material
Use for our product: • Used to cut the
round corners of the clip board
The Clipboard Flow Chart
Cut plastic to rough widthCut plastic to rough width
Cut plastic to rough lengthCut plastic to rough length
Trim to actual sizeTrim to actual size
Cut corners to round Cut corners to round
Put on the clipPut on the clip Drill holes for the clipDrill holes for the clip
The Pop Rivet Gun
Purpose:• Attach objects by
using rivets
Use for our product: • Used to attach the
clip to the board
1. Identify the Pop Rivet Gun.
AA BB CC
FFDD EE
2. Identify the Compound Miter Saw.
AA BB CC
FFDD EE
3. Identify the Drill Press.
AA BB CC
FFDD EE
4. Identify the Corner Rounder.
AA BB CC
FFDD EE
5. Identify the Table Saw.
AA BB CC
FFDD EE
6. Identify the Jointer.
AA BB CC
FFDD EE
7. What is the operation of the Pop Rivet Gun?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock
8. What is the operation of the Jointer?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock
9. What is the operation of the Table Saw?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock
10. What is the operation of the Corner Rounder?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock
11. What is the operation of the Drill Press?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock
12. What is the operation of the Compound Miter Saw?
A. Used to rip or cut stock to widthB. Used to cut the cornersC. Used to drill holesD. Used to hold things together using
rivetsE. Used to cut material to lengthF. Used to join edges or square stock