Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras

Technology Category/ Market

Categories: Applied Mechanics & Mechanical Engineering | Advance Material & Manufacturing

Industry: Tool Manufacturing Industry, Advanced Materials Processing, Industrial Automation and Robotics, Machining and Manufacturing Industries, Super-abrasive Materials Manufacturing

Applications: Precision Machining, Metalworking, Ceramic and Composite Material Processing, Tool Manufacturing, Surface Finishing, Industrial Automation, Super-abrasive Material Production, Customized Grinding Patterns

Market: The global grinding wheel market size is estimated to grow by USD 5,877.71 million and the size of the market is forecast to increase at 5.24% CAGR between 2022-27.

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Problem Statement

  • In Manufacturing high-quality uni-layer brazed grinding wheels with a predefined array of cBN/Diamond abrasive grits, several challenges are been faced.
  • Traditional methods have limitations, including grit clustering, uneven protrusion from the bond level, and the use of templates.
  • To address these issues and to improve the precision, control, and efficiency of grit placement, a new system and the method are needed.
  • The solution offered by the instant Patent is a pick-drop-place (PDP) technique and system, designed to provide improved control, uniform protrusion, & customizable grit patterns without relying on predefined templates.


The present patent invention is a system and method for developing uni-layer brazed Grinding wheels by precisely placing cBN/Diamond abrasive grit in a pre-defined array on grinding wheels using a pick-drop-place (PDP) technique, ensuring uniform distribution & controlled protrusion, thus enhancing grinding wheel performance as shown in figures. FIG 1(a) & 1(b) illustrates an image of single layer diamond grinding wheel in its as brazed condition and SEM image.


Selection of Grinding Wheel Substrate:

  • Preparation of Surface with Filler Alloy

Grit Preparation:

  • Utilization of Gripper System

Vacuum and Pneumatic System Operation:

  • Digital Monitoring

Piezoelectric Sensor Integration

  • Load Control

Optional Special Attachment

  • Brazing Process

Key Features/ Value Proposition

User Perspective:

  • Enhanced Efficiency, Longer Tool Life, Quality Assurance, Expanded Capabilities

Technology Perspective:

  • Invention utilizes PDP Tech for advanced, controlled & precise grit placement.
  • Offers flexibility in adopting grit patterns without templates.
  • Enhanced Real-time Monitoring using digital cameras and sensors.
  • Represents an innovative approach to grinding wheel manufacturing.

Industrial Perspective:

  • High-Quality Tools: Industries benefit from high-quality brazed grinding wheels.
  • Uniform Grit Distribution: Ensures even grit distribution, reducing uneven grinding.
  • Enhances competitiveness in industries working with hard materials.
  • Efficient grit placement results in cost-effective manufacturing.
  • Industries achieve superior machining outcomes, enhancing product quality.

Questions about this Technology?

Contact for Licensing

Research Lab

Prof. Amitava Ghosh

Department of Mechanical Engineering

Intellectual Property

  • IITM IDF Ref. 1956

  • Patent No. 451184 (Grant);

  • PCT Application No. PCT/IN2021/050115

Technology Readiness Level

TRL- 3/4

Proof of Concept and validated in Lab

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