HERRAMIENTAS FORMADO
COUNTERSINK FOR COUNTERSUNK SCREW
COUNTERSINK FOR COUNTERSUNK SCREW (CHAMFERING)
COUNTERSINK
FORMING UP
FORMING UP
CHAMFERING (BOTH SIDE)
FORMING SHAPE
FORMING UP & DOWN
USAGE
Locator, decorative pattern of the material or the like.
Forming process of making a chamfer to material.
Used for sink a countersunk screw head, make chamfer to a corner after punching, guide of tapping.
EXAMPLES
This is the example of chamfering 120°on a corner.
It is used to sink a rivet.
The example of making a C chamfering on a Triangle with radius.
The example of making a C chamfering on a rectangle with radius.
COUNTERSINK FOR COUNTERSUNK SCREW (CHAMFERING)
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SHAPES OVERVIEW
A workpiece is processed into the hemisphere shape.
NOTE
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1）The shape of the chamfer.
(TYPE 1) Chamfer with a straight section. (See Fig. 1)
(TYPE 2) Chamfer without a straight section. (See Fig. 2)
The Appearance of TYPE 1 is better than TYPE 2 when put a countersunk screw. TYPE 1 is the standard of CONIC.
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2）Chamfering all from top to bottom of material can not be produced, because contact with the punch and die.
Straight section is required like Fig.4.
- 3）Standard countersunk screw head diameter is twice of the screw size. But some screw head diameter is smaller than the standard. So, be careful when you order.
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4）If a large amount of chamfer, Raised around the chamfered.
In that case, it can be reduced by increasing the pre-hole diameter