Общий каталог Tungaloy 2020 - 2021

Chipbreakers B

Necessity of chip control (Problems and effects)

Necessity of chip control Problems Effects

1. Scattering of chips and	C 1. Disturbs unmanned and automated machining.
coolant.	2. Disturbs high-speed and high-efficiency machining.
2. Wrapping around the	3. Degrades finished surface.
workpiece and the tool.	4. Threatens operator’s safety.
3. Accumulation on the tool, jig,
and machining facilities.	5. Reduced operation rate.
①Why is chip control needed?

②Effect of improper chip control Additional problems when D

chips are not properly controlled

①Why is chip control needed? ②Effect of improper chip control

What is chip?		• Defective work.	E
	Effects on quality	• Defective surface finish

For making a product from a workpiece, removed		• Increased number of man-hours for handling.
objects produced by a tool which is set to cut to a		• Increased tool costs.
	Effects on operation	• Troublesome chip handling.

specified depth with the relative motion of the tool

and the workpiece.

	Effect on safety	• Stain and damage on machine caused
Problems when chips		from improper carrying-out of chips.
	and health.	• Dangerous effects on the human body.
	are not properly	(Injury and burns on hand, etc.)
	controlled
	Effective measures	G “Chipbreaker”
Chip shape	Description of
		Eff ect Acceptability

Depth of cut: small Depth of cut: large chip shape H

Chips irregularly Wrapping around the tool or workpiece entangled or accumulation around the cutting Not acceptable point, hindering cutting

Long continuous Bulky during transport in the automatic spiral chips line

R 50 mm May be preferred when one operator J

handles one machine

Short spiral chips Smooth chip ﬂ ow

R 50 mm Diffi cult to scatter

"C" or "9" shaped Favorable shape if not scattering

chips (Around one	• Not bulky and easy to transport		L
coiling)
Excessively broken	• Readily scattering. If scattering is the only		M
chips. Thin pieces or		trouble, it may be acceptable because the
connected in a form		chip cover, etc. may be used.
of wave as shown in	Not acceptable • Tend to cause chatter, causing harm on the

the ﬁ gure left ﬁ nished surface roughness or tool life.