Layouts Flashcards
what are the 2 types of Surface Plate?
Cast Iron and Granite Surface Plate(quartz)
Advantages of Granite Surface Plate?
Doest not Bur, Non-Magnetic, Does not affect Temperature Change, Has Little Stress so it wont Distort, Does not oxidize or Corrode
What kind of surface plate that has greater wear resistance?
Quarts granite surface plate
What kind of surface plate primarily for its heavy load-carrying ability?
Non quarts or Black gabbro granite
3 grades of surface plate accuracy?
Grade AA-Laboratory Grade
Grade A-Inspection Grade
Grade B-Toolroom Grade
care of surface plate?
Do not Hammer/punch the surface.
always covered when not using.
keep it clean after using.
when using it with sharp object put parallels to avoid bur.
3 types of scibers?
Pocket sciber,
Double end,
Knife edge Sciber
Scriber that has a removable point and it can be stored in the handle?
pocket sciber
scriber that has straight point on one end and a pointed hook on the other end(90*)?
Double End Scriber
scriber that used for high degree of accuracy ?
Knife Edge Scriber
Where or which part of your High Speed Steel Knife Scriber be sharped???
On the angle side
Note: do not try to sharp your scriber on the bottom you may ruined the accuracy of it.
what kind of scribers that can scribe arcs and circles and for transferring measurement?
Dividers and Trammels
2 types of Dividers?
Firm joint and Spring Joint
What kind of scriber that can scribe arc and circle that beyond the range of dividers?
Trammels
what kind of calipers has two different legs? one leg pointed and adjustable in length and the other leg has curved ?
Hermaphrodite calipers
what kind of Hemaphrodite caliper that has an adjustable point?
Lock Joint with Fine adjustment
All ________ are used either for inspection or for layout. These task might include the inspection of a workpiece to check that two sides are perpendicular.
Squares
The ____________ is a basic inspection squares and precision instrument.
Solid Squares
How to check the accuracy of Square?
Use a master precision square
The ______ can be used to check or lay out angles 90* from edge of the work
The Square Head
The _______ can be used in combination with other parts of the set to measure,
Steel Rule(blade)
The _____ can be used to check or lay out various angles from 0* to 180*.
Bevel Protractor
A ________ can be used to locate the centre on the end of round(like shaft).
Centre Head
A lay out took to scribe horizontal lines parallels to its base?
Surface Gauge
the most common lay out tool used for precision layout ?
Vernier Height Gauge
most common hammer for layout?
Ball-peen Hammer
How is the divider size?
The length of the legs from the pivot determines the size of the dividers, with range in size from 6 to 12 inches.
Surface Gauge, what is the accurate to the smallest increment on a rule?
1/64 in or 0.5 mm
2 types of punches for lay out ??
centre punch and prick punch
A centre punch has an included point angle of ________?
90*
prick punch has included angle that range from ____ to _____?
30* to 60*
what kind of layout when a work piece has been laid out with only scribe lines?
Temporary layout
_________ is used prior to machining to make sure the layout will still be visible after machining or handling.
Permanent layout
what kind of punch marks that has uniform size, without the use of a hammer.
Automatic Centre Punch
_____ are used to support the work piece for milling, grinding , drilling, and. many other operation, include layout.
Parallels
The ______ is made from two angular sliding planes that can be locked in position by set screws.
Adjustable Parallels
A _____ are mainly used to support round work for layout, inspection, and light duty machining operation.
V-Blocks
A _______ is a precision-ground rectangular steel bar that is supplied with the either a straight or bevelled edge design.
Straightedge
A _____ are used to check a surface for flatness and to guide the scriber when drawing long straight lines in layout procedures.
Straightedge
A ______ is a good precision or gauge made from wood, metal, plastic, or cardboard that acts as a guide to positioning , lay out , cut or drill the required d shape.
Templates
_______ can be developed to make turns in pipe, or connect pipes to from a Y to T joint.
Pipe template
The _______ is the most common tool used for precision layout.
Vernier Height Gauge
most common type of layout coating and can be applied to the metal surface by brush, spray, cloth or dauber.
Layout Dye(Bluing)
what are the 4 Types of layout coating ?
- Copper Sulphate
- Vermilion Powder and Shellac
- Chalk
- Lime and Alcohol
what kind of Layout die(bluing) that can only be applied on ferrous metal?
Copper Sulphate
Layout die(Bluing) that can be applied on metal such as aluminum and copper?
Vermilion Powder and Shellac
Layout that can be applied on hot-rolled steel?
Chalk
The ____________, also known as a parallel clamp, is used for light clamping operation.
Toolmaker’s Parallel Clamp
when angles are laid out with bevel protractor, the accuracy attainable is?
+ or - 0.5* (30 in)
before using vernier height gauge it is important to ?
zero the vernier to the reference surface(surface plate/table)
precision layout with a vernier height gauge is accurate to ?
0.001 inch and 0.2 mm
