TOYO刀轮刀轴/钻石刀轮刀轴

TOYO’s Cutting Wheels

1. ELECTRIC DISCHARGE-GROUND EDGE:

   Toyo Cutting Wheel Chip is produced by Electric Discharge Grinding

   System.

   What is Electric Discharge Grinding ?

　　Anode or cathode is heated by Impact Energy of Positive Ion, and wheel

    shape is finished precisely by Evaporation or Melting Phenomenon which

    created by High temperature from Anode or Cathode, and not by Grinding

 Powder.  Thanks to Electric Discharge Grinding, edge surface is very

sharpen.  Roughness of cutting edge can be set according to the power of

Electrode.

   

    CUTTING EDGE CHARACTERISTICS WITH  ELECTRONIC

 DISCHARGE GRINDING SYSTEM:

 ① Thanks to computer controlled ground wheel, no lifetime irregularity

 is happened.

 ② Thanks to the minimum R-shaped cutting edge, the wheel gives a

    superior score into the glass, and you can scribe the glass with

    low pressure, thus the clean scribe line can be realized.

 ③ In order to achieve the best scoring, we can produce the wheel

    which suitable to any type of glass (soda-lime glass, Non-alkaline

    glass, chemical/heat toughening glass, etc) or any type of hardness

    of glass, or any type of glass thickness. 

              

2.1 MATERIAL OF WHEEL

     There are 2 types of wheels, one is super hard wheel and another

     another one is Diamond Compact Wheel, and scribing ability, life

＆ price are different according to the type of wheel.

MATERIAL:

    

	MATERIAL
SUPER HARD	Tungsten Carbide Material
DIAMOND COMPACT	Diamond Sintering

  CHARACTERISTICS:

SUPER HARD	Many variations are available. Easy to Grinding.  Applicable to many types of setting.  Reasonable price, thus quite economical
DIAMOND	Minimum scribing defect.  Extreme long life

 2.2 SHAPE OF WHEEL:

     There are 2 types of shapes of wheel, one is conventional type and

     another one is self vibration (TAP) wheel.

                 

    Picture                                        Picture

Conventional wheel                            TAP wheel

(super hard, Diamond)                     (super hard, Diamond)

 

 

 

2.3 EDGE GROUND:

    Type of edge ground to be changed according to type of glass (non-alkaline glass, soda-lime glass or chemical/heat toughening glass

     etc) and scribing process. 

Conventional wheel (super hard)

Grinding No.	Roughness	Type of Glass
100	Fine	Soda-lime glass
101	Fine	Soda-lime glass
102	Medium	Soda-lime glass, Hard glass (i.g. non alkaline)
103	Medium	Soda-lime glass, Hard glass (i.g. non alkaline)
104	Rough	Hard Glass, Hot Glass
105	Rough	Hard Glass, Hot Glass

TAP Wheel (super hard)

Grinding No.	Roughness	Type of Glass
306	Fine	Soda-lime glass
407	Medium	Soda-lime glass, Hard glass
406	Medium	Soda-lime glass, Hard glass
403	Rough	Hard glass, Hot glass

* Characteristics of each grinding

Roughness	Grinding No. (note)	Characteristics
Fine	101, 306      308	Narrow Rib Mark, Clean Cutting Surface Strength of Cutting Edge is strong
Medium	102, 407 103, 406	Wide Scribing Setting Range, Stable Cutting
Rough	104, 403 105	Excellent Scoring against glass, Suitable for Hard Glass

      

　　   

  

2.4 SIZE AVAILABLE
	O.D.	I.D.	THICKNESS	CONVENTIONAL	TAP	DIAMOND
1	10.0	1.8	2.0	O
2	8.0	1.8	2.0	O
3	6.0	1.5	1.1	O	O
4	6.0	1.5	1.0	O	O
5	6.0	1.4	1.1	O
6	5.0	1.5	1.1	O		O
7	5.0	1.4	1.1	O	O
8	5.0	1.4	1.0	O	O
9	5.0	1.3	1.0	O		O
10	5.0	1.3	0.7	O
11	4.5	1.4	1.0	O
12	4.5	1.3	0.7	O
13	4.0	1.6	1.1	O
14	4.0	1.5	1.1	O		O
15	4.0	1.5	0.7	O
16	4.0	1.3	1.0	O	O
17	4.0	1.3	0.7	O	O
18	4.0	1.3	0.65	O
19	4.0	1.0	1.1	O
20	4.0	1.0	1.0	O
21	4.0	0.9	1.0	O
22	3.5	1.6	1.0	O	O	O
23	3.5	1.0	1.1	O	O	O
24	3.0	1.3	1.0	O		O
25	3.0	1.1	1.0	O
26	3.0	1.1	0.8	O
27	3.0	1.1	0.65	O
28	3.0	1.0	1.0	O
29	3.0	0.9	1.0	O
30	3.0	0.8	0.7	O	O
31	3.0	0.8	0.65	O	O	O
32	2.5	0.8	0.65	O	O	O
33	2.0	0.8	0.65	O	O	O

3.1 CHARACTERISTICS OF TAP WHEEL (CONCEPT OF DEVELOPMENT)

Thanks to the special shape inside, the wheel itself produces slight vibration

while rolling.  Rolling defect might suddenly be happened in the conventional

wheel while scribing due to the glass chip in the gap between wheel’s inside

and axle or due to friction. Even if you observe the scribe line, breaking

defect is happened because no vertical crack is formed, and no one can

expect the timing of rolling defect.  Rolling defect effects the production

yield.  The rolling defect might be happened from the beginning, and

you might suspect that “this is a defective wheel” although this is the normal

and no wheel edge is consumed.

To prevent such a critical problem, TOYO developed Tap wheel (vibration

wheel).  The special shape inside is to reduce the rolling friction due to

glass chip between the wheel’s inside and axle due to glass chip. Reduction

of rolling defect corresponds to the longer life.  Also thanks to self-vibration,

it provides deeper median crack into the glass, you can realize square break

for any glass in any thickness. LEAVING SMOOTH and FINE EDGE !

3.2 SHAPE INSIDE TAP WHEEL

          PICTURE

CUTTING WHEEL CLASSIFICATION
CONVENTIONAL WHEEL
GRINDING NO.		ROUGHNESS		ADVANTAGE		DISADVANTAGE
101		FINE		Narrow Rib Mark		Concern about abnormal
		(MIRROR FINISH)		Fine Cutting Surface		cutting at cross point
				Strong Glass Edge		Slip concern due to mirror finish
				Suitable for Soda-lime glass		Not suitable for Hard Glass
103		MEDIUM		Wide Range of glass (from		None
				Soda-lime to Hard glass)
				Suitable for Strip Cutting
105		ROUGH		Suitable for Hard		Rough Cutting Surface
				Glass		Glass Chips concern
				Wide Range of parameter
				setting
				Very few abnormal cutting
				cutting at cross point
TAP WHEEL
GRINDING NO.		ROUGHNESS		ADVANTAGE		DISADVANTAGE
306		FINE		Narrow Rib Mark		Concern about abnormal
308		(MIRROR FINISH)		Fine Cutting Surface		cutting at cross point
309				Strong Glass Edge
				Suitable for PDA Panel
306Y		FINE		No abnormal cutting at		Cutting surface is a little
		(MIRROR FINISH)		cross point		rough comparing #306
407		MEDIUM		Fine Cutting Surface		None
				Suitable for TFT Panel
407Y		MEDIUM		No abnormal cutting at		Cutting surface is a little
				cross point		rough comparing #407
403		ROUGH		Good scoring against glass		Strength of glass edge is
				Improve Production Yield		a little worse
403G		ROUGH		Suitable for Hot Glass		Glass Chips concern

Toyo 103

Toyo 105

Toyo 308

Bad cutting

Normal cutting