Turning-DIamond Inserts

1.

| Carbide | Diamond | Cermet |
B y B r u c e

2.

Part 1. Common Inserts types——PCD/CBN
Part 2. Rake Angle
Part 3 . What information you need to know before processing a
customer inquiry
Part 4 . Additional information——PCD Inserts
Part 5. Look at the Drawing

3.

4.

Face Milling Cutter
Regualr PCD Inserts
PCD Inserts with Rake angle
Full Edge PCD Inserts
PCD Milling Inserts (APKT)
PCD Inserts with Chipbreak
Customized PCD Inserts

5.

CBN Inserts with 1
Corner
CBN Inserts with 2 Corners
Full Edge CBN Inserts
CBN Inserts with 3 Corners
CBN Inserts with 4 Corners
CBN Inserts with 4 Corners

6.

CNGX
RNGN
RCGX-V
RCGX-Y
Roller
Gear
Brake Disc
Bear

7.

When the fourth code is ”X”, it means that the hole is non-standard and the specific shape
specifications need to be confirmed with the customer.
Such as “CNGX” “DCGX”……

8.

Here's a brief comparison between PCD and CBN inserts:
1. Raw materials
PCD inserts are composed of polycrystalline diamond,
while CBN inserts are made of Cubic Boron Nitride, which is the second hardest material after synthetic diamonds.
2. workpiece materials
PCD inserts are capable of processing materials such as aluminum, aluminum alloys, ceramic like polymers,
composites, graphite, copper,
CBN inserts are primarily used for iron processing, with common applications including hardened steel, cast Iron,
ductile iron, and gray iron.
3. Usually PCD has only one corner, while CBN can have many corners.
For example: When an Inserts consists of two corners, it must be a CBN Inserts

9.

1. Increase cutting force and improve cutting efficiency.
2. Helps to remove chips, keep the tool unobstructed, and reduce
friction.
3. The design of the rake angle affects the smoothness and quality of
the final cutting surface
PCD Inserts may have rake angles,
but CBN Inserts must not have rake angles.
rake angles
Under what conditions does a PCD Inserts have a rake angle?
—— When the fourth code is “T”, there is a “Rake Angle“

10.

PCD Inserts may have rake angles,
but CBN Inserts must not have rake angles.
rake angles
with rake angle
no rake angle
no rake angle, but have chipbreaker

11.

Step 1 : Check that it's standard The criterion is to look at the ISO table
1. Confirm that the size falls within the normal range.
YES
2. Standard pricing applies for inserts with sizes ranging from 6.35mm ~ 12.7mm , tolerance=G、K、M. Any significant deviation from this
range may affect the price.
1. Simple customization: make changes based on the specifications provided in the ISO table.
NO
This includes modifications to PCD/CBN size, inserts angle, hole shape, and the addition of a chip break .
2. Complex customization: do not align with the ISO table, we require specific drawings to proceed.
Simple customization:
CCGW120404 PCD Inserts with Chip breaker
Complex customization:
Need Drawing to process

12.

Ꙭ
Tipped CBN
PCD Inserts
Inserts
Item / Detailed
1. Specification / ISO
Code (Meter/Inch)
2. Workpiece Material
Solid CBN
Inserts
Specially Inserts
Simple
Complex
customization customization
1. Inserts Shape
2. Clearance Angle
√
√
√
√
√
√
√
√
3. Tolerances
√
√
√
√
4. Machining and
Fastening Feature
√
√
√
√
5. Insert size
√
√
√
√
6. Thickness
7. Corner radius
√
√
√
√
√
√
√
√
√
√
√
-
Chip Breaker
Diamond size
3. special requirements Coatings
Corners
rake angles
4. QTY
5. Drawing
-
√
√
√
√
√
√
√
√
√
√
√
√
Note
G、K、M is the
most common
6.35mm~12.7mm is
standard
√

13.

For the PCD Inserts
1. Material:
PCD Inserts cannot process metals containing iron
Usually the PCD Inserts is a corner
2. Corners:
3. AP**
customers do not choose PCD inserts with 2 corners due to the high risk of damage during the clamping process
AP Inserts are commonly used for Face Milling
4. VC**16**** VC16 Inserts are commonly used for wheel hub

14.

15.

For Tipped CBN Inserts
1. Some questions that must be confirmed before production:
a).
What's the workpiece material?
b).
Interrupted cutting or continuous cutting?
2. For Solid CBN Inserts
CN**12**** (Such as: CNGX 120716) :
CN12 Inserts are commonly used for brake discs

16.

C
T ④
②
C
②
G
③
16
⑤
02
⑦
T
T3
⑥
G ③

17.

See you
tomorrow!