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Cup wheel steel core

Cold press cup wheel core

Short Description:


The Cold Press Cup Wheel Core belongs to the grinding wheel substrate category, formed by cold pressing metal powder or alloy steel to provide a high-density support for cup wheels. It is suitable for high-precision grinding in metal machining, gem polishing, and ceramic processing that requires low heat generation and high wear resistance.

Product Detail

Product Tags

Core Features

· Cold Pressing Process Advantage
Formed under 100-300MPa high pressure without high-temperature sintering, the substrate density reaches ≥7.8g/cm³ with uniform structure and no pores, avoiding coarse grains in traditional sintering and improving wear resistance by 40%.

· High-strength Material System
Made of Fe-Cu-Ni alloy powder or 45# steel blanks, cold-pressed and aged to HRC 45-50, with compressive strength ≥1200MPa and impact toughness αk≥40J/cm², resisting high-frequency impact grinding.

· Precision Structural Design

· Dimension Accuracy: Outer diameter 80-250mm, thickness 2-6mm, center hole tolerance ±0.01mm, compatible with high-precision grinder spindles;

· Balance Design: Five-axis dynamic balance ensures residual unbalance ≤3g·cm, vibration amplitude ≤0.02mm at high speeds;

· Heat Dissipation: Embedded copper cooling mesh and spiral grooves keep grinding temperature below 80℃, maintaining abrasive performance.

Application Scenarios

· Precision Metal Machining: Polishing aerospace aluminum/titanium alloy parts on CNC grinders, achieving surface roughness Ra≤0.8μm;

· Gem & Ceramic Processing: As diamond wheel substrate for jade/ceramic fine grinding, with processing accuracy ±0.05mm;

· Electronic Component Machining: Thinning silicon wafers and sapphire substrates, with substrate deformation ≤0.03% for semiconductor cleanliness requirements.

Technical Parameters

Parameter Type

Specific Indicators

Substrate Material

Fe-Cu-Ni Alloy Powder / 45# Steel

Forming Process

Cold Pressing (100-300MPa) + Aging Treatment

Density

≥7.8g/cm³

Outer Diameter Range

80-250mm (Common sizes: 100mm/150mm/200mm)

Thickness Range

2-6mm (Customized for wheel models)

Hole Diameter Tolerance

±0.01mm

Maximum Rotation Speed

8000rpm (Dynamic balance grade G2.5)

Applicable Abrasives

Diamond Powder, CBN, Alumina Ceramic Abrasives, etc.

Product Advantages

· Low Heat Generation: Cold pressing avoids thermal stress, with thermal deformation ≤0.01mm, ideal for precision machining;

· Long Service Life: Over 100,000 fatigue cycles (50% longer than sintered substrates), reducing replacement costs;

· High-precision Adaptation: Axial runout ≤0.03mm, radial runout ≤0.02mm, ensuring grinding trajectory accuracy;

· Eco-friendly Process: No exhaust emission, compliant with ISO 14001, suitable for green manufacturing.



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