Page 828 - Tungaloy Catalog

Chipbreakers

NEW DG chipbreaker for mild steel

Wavy cutting
edge Applicable for low to high speed machining
Prevents long chips from tangling around the tool
Creates wavy chips that
are easily controlled body, even when the cutting speed is low on heavy
and broken. machines with a low-rpm spindle

Chips with low cutting speed: Vc = 262 sfm
Chipbreaker for making
short chips
Work material: Mild steel
Controls the direction of chip 1015 (AISI)
flow to break chips with cracks. Drill: ø1.654"
2.000" 2.000"
This prevents long chips from Feed: f = .003 ipr
tangling around the tool body. DG type Competitor

DJ type DW type
General purpose chipbreaker for almost all applications. In comparison with conventional inserts, this chipbreaker
Features low cutting forces and allows stable drilling. allows higher feeds and produces superior surface finishes.

Chipbreaker for Wiper design
peripheral edge Can improve surface finish at nor-
Deeply formed chip groove per- mal feeds and minimizes surface
forms exceptionally free cutting degradation at high feeds.
action and effective chipbreaking.
Chipbreaker for Extraordinarily
11 central edge strengthened corner
Relatively shallow chip groove
prevents chips from packing. Increased land width plus a two
Strong chipbreaker for step relief angle strengthens the
corner section.
high feeds
Low cutting forces and long tool life
Drilling Tools Bumps and grooves formed on the rake face reduce the contact area Can forcibly curl thick chips produced
at high feeds, causing them to break
with chips reducing cutting forces and delivering longer tool life.
into short sections. It also allows for
large volume chip removal.
DS type
Application area of each chipbreaker type
Performs excellent chip control for gummy materials such
as stainless steels and low carbon steels.
DJ
Entirely new rake
Cast iron
face design DG
Can effectively form gummy ma-
terial chips into short sections.

Steel
DW
Strengthened corner
Strengthened corner geometry
minimizes insert breakage even
Sharp cutting edges when drilling stainless steels. DS
Stainless
Exceptionally free cutting action
improves chip control. .002 .004 .006 .008
Feed: f (ipr)

11–12 Relating Cutting Conditions Technical reference
pages
(14-1)
(11-14 )