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