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Abrasive Grain Uniform Dispersion Metal Wheel "SOLOTERU"

Business Division
Electronics, Semiconductors, Transportation, Machinery and Tools
Types of Tools
Grinding Tools
Processing Methods
Grinding, Drilling
Work
Semiconductor materials, Glass, Ceramics, Others
Bond
Metal

Product Overview

Ultra-thin-blade core drill with uniformly dispersed abrasive grains

In the machining of precision parts and mechanical components made from materials such as ceramics, a technology that uniformly disperses the abrasive grains within the abrasive layer has made it possible to improve cutting performance while extending tool life compared to conventional metal tools.
Furthermore, by making the abrasive layer ultra-thin, these tools reduce machining load and minimize chipping—even when machining hard and brittle materials and other specialty materials—thereby improving machining efficiency and demonstrating superior performance compared to other tools.

Application

  • Grinding and coring of various ceramics, sapphire, quartz glass, GaN, silicon, MMC, and other hard and brittle materials

Types of Adhesives

  • Metal

Product Features

The uniform dispersion of abrasive grains results in a longer service life, sharper cutting performance, and reduced chipping compared to conventional metal wheels.
Can be used for a variety of machining methods, including core drilling, counterboring, and hole drilling.

Manufacturing Capabilities
Target Work
Grit: #30–#400– (*#1000)
*Please consult us regarding grit sizes finer than #1000.
Various ceramic materials (silicon nitride, SiC, zirconia, etc.)
Outer diameter: φ1.0–φ100Semiconductor materials (GaN, sapphire, glass, etc.)
Blade thickness: 0.3 mm and upOther (MMC, metal-based materials, CFRP, etc.)
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Machining Case Study: Countersinking of Polycrystalline SiC

SOLOTERU® has good shape at workpiece corners and can suppress surface chipping

Processing Examples*
Tool Wear*
Corner R [mm]
Chipping [μm]
Conventional Metal: #100—Blade Thickness 1.0 mm T
100
100
0.36
74
SOLOTERU®: #100 - blade thickness 0.5mmT
50
30
0.14
45
SOLOTERU®: #140 - blade thickness 0.5mmT
45
55
0.08
32
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*Relative value, with the load during conventional metal machining set as 100

Measurement Points

Conventional Metal #100 - Blade Thickness 1.0 mm T
SOLOTERU® #100 - blade thickness 0.5mmT
SOLOTERU® #140 - blade thickness 0.5mmT
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Comparison with Conventional Metal

Conventional Metal
SOLOTERU®
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Example of thin-blade SOLOTERU®

#140 Thin-Blade Model
#40 Thin-Blade Model
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Applications of Tool Shapes

Core Drill Shapes

Core Drilling

Countersinking
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Small-Diameter Non-Core Shape

Drilling (contour drilling, helical drilling, etc.)
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Si Wafer Trimming (Perimeter Step-Down) Processing

The size of the chips is proportional to the abrasive grain size.
Chipping was reduced to 70 μm or less using #400 grit.


Tool Specifications: Outer Diameter φ10, Blade Thickness 0.5 mm T
Workpiece: Si Wafer

Cropping

Grit size
Machining Load*
Chipping [μm]
#140
100
180
#200
100
96
#400
120
67
#800
150
44
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*#140 - Relative value when the load is 100 when processed with SOLOTERU®

Chipping Condition

If you have any questions or would like to discuss anything, please feel free to contact us at
.