Optical Profile Grinding Wheels

Optical Curve Profile(PG) Grinding Wheel Application: precise grinding mould and die, punch pin, optical grinding and form grinding cutting tool ( such as end mill and reamer) and precise instrument

► Model: 3A1, 14K1, 1B9

► Bonded: resin bond & metal bond

► Optical Profile Grinder: Amada, Waida, Wasion, etc

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Product Details

Optical Curve Profile grinding(PG grinding) is employed to grind various precision moulds such as die & punch for press which have complicated forms of irregular lines and curves, forming cutting tools, cutting tools, high precision plate gauge, electrode for electric discharge grinding and formed precision parts such as template.

Structurally optical profile grinding wheels are used in dry, which is a big feature and handled by manual system as well as Numerical Control full automatic system. Lately NC machines are widely employed in various industries and increasing rapidly. Rigidity, horsepower and machining accuracy of latest machines have been much improved where optical profile grinding wheels are required more under this condition to generate high precision machining.

Optical profile grinding wheel is used for precise grinding mould and die, punch pin, optical grinding and form grinding cutting tool ( such as end mill and reamer) and precise instrument.

The workpiece materials:
Diamond:Super hard and brittle cutting materials (such as tungsten carbide, cermets, ceramic, etc)
CBN: heat treated steel (such as SKH, SKD and SKS, etc)

Nose angle and nose strength of profile grinding wheels

Nose angle is available from 5°. Depending on the grit size of diamond or CBN employed, nose width and nose radius change as below. Nose strength is high at wider angle (i.e. an obtuse angle), and is strong against the load given vertically, while it is weak against parallel load.

Grit Size	140	170	200	230	270	325	360	400	600	800	1000	1500
Nose width	0.2	0.18	0.16	0.15	0.14	0.12	0.11	0.10	0.08	0.08	0.06	0.03
Nose radius	0.09 ~ 10	0.08 ~ 9	0.07 ~ 8	0.07 ~ 8	0.06 ~ 7	0.05 ~ 6	0.05 ~ 6	0.04 ~ 5	0.03 ~ 4	0.03 ~ 4	0.02 ~ 3	0.015 ~ 2

Finished Surface

Depending on the grinding conditions, surface finished differs at great deal.

For instance, when you set cross feed at smaller number, particularly good surface can be achieved.（＃200MVD=0.5S/1mm/min、automatic feeding）

There are several wheels using abrasives of rough sizes. We recommend you to select a wheel depending on grinding efficiency, precision level achieved, and appearance.

Grit size		140	170	200	230	270	325	360	400	600	800	1000	1500
Surface roughness S	Metal bond	4	3.3	2.8	2.3	2	1.7	1.4	1	0.8	0.6	0.4	0.2
Surface roughness S	Resin bond	3.3	2.8	2.4	2	1.6	1.4	1	0.8	0.6	0.4	0.3	0.2
Surface finished		Rough		Middle			Precision			Ultra precision

Applicable optical projection grinding machines: WAIDA, WASINO, PROFILTEC, etc

Drawing&Specification

The abrasive grits of profile grinding wheels

Diamond	For grinding hard materials such as tungsten carbide, cermet, ceramics.
CBN	For grinding ferrous materials such as SKH, SKD, SKS, SUS & Etc
Concentration（100, 125, 150）	In general we recommend you to choose concentration at 100 or more.

Specifications of optical profile grinding wheel

Model

Grit

3A1 diamond & cbn wheel

30-150-180

0.5-2.0-5

5-10

3, 5, 7, 10

4.77

22.23

31.75

140- 1000

Model	D	W	θ	R	T	H	Grit
14K1 diamond & cbn wheel	30	3	5°-15°-20°	0.03-0.2	3	4.77 8 12 22.23 24 31.75 32	140- 1000
	65	5			5
	75
	80
	100				7
	125
	150
	180

Model	D	W	θ	R	T	H	Grit	X
1B9 diamond & cbn wheel	30	3	5°-15°-20°	0.03-0.2	3	4.77 8 12 22.23 24 31.75 32	140- 1000	1
	65	5			5
	75
	80
	100				7 10
	125
	150
	180
Other size can be design according to your requirement.