Marking and Joining Metals Flashcards Preview

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Flashcards in Marking and Joining Metals Deck (12):
1

What is an Engineering Square used for?

Mark Lines 90 degrees from edge of material
Check square components or corners
(Like Try Square)

2

What is an Engineering Bevel?

Adjustable angle marker

3

What are tools used for Marking a Surface?

Scriber
Marking Blue
Dividers
Odd-Leg Calipers
Surface Gauge and Surface Plate
Dot Punch

4

What is a Scriber?

Sharp tool
Marks accurate lines

5

What is a Marking Blue?

Thin Ink spread on metals left to dry, when scratched it leaves a shiny visible line

6

What are Dividers?

Mark out circles or arcs
One point digs into material whilst other point scribes line into the surface of the material

7

What are Odd-Leg Calipers?

Scribe lines parallel to a straight edge
Notched leg slides along edge of metal while scriber point marks a line

8

What is a Surface Gauge and Surface Plate used for?

Marking parallel lines accurately

9

What is a Dot Punch?

Conical Point ground to 60 degrees
Used for marking positions of drill holes
Used to make small dotted indentations on marked out lines, making lines clearer when cutting or shaping

10

What is a Centre Punch?

Conical tip ground to 90degrees
Used for marking centres of holes for drilling
Punch put into dot punch mark and enlarges it
Prevents drill bit wandering across surface

11

What is Welding?

Use of heat to melt edges of metals being joined
Forms a pool of molten metal that when cooled forms the joint

12

What is Soldering?

Using a bonding alloy to form a joint
The 'Parent Metals' don't melt
Surface is cleaned with flux and heat is applied with gas torch
Solder is applied which melts and 'runs' between Parent Metals