Grinding, Honing & Lapping

Process Definition & Working Principle

Grinding, honing, and lapping represent the pinnacle of high-precision, subtractive finishing processes utilizing abrasive media. Unlike traditional processes (turning, milling, drilling) that employ tools with a defined cutting edge geometry, abrasive processes utilize tools with an undefined cutting edge geometry, where tens of thousands of microscopic abrasive grains act simultaneously to remove material.

Micromechanics of Abrasive Cutting

The interaction of a single abrasive grain with the workpiece material evolves through three distinct physical phases based on penetration depth and material plasticity:

Kinematics, Axes, & Machine Configuration

The kinematics of abrasive machining systems are tailored to the geometry of the target surface – flat, external-cylindrical, internal-cylindrical, or complex profile.

Grinding Machine Configurations

CNC grinding machines require extreme static and dynamic stiffness to withstand high normal forces without elastic deflection. The primary setups include:

Tooling & Cutting Geometry

Proper tooling selection and continuous maintenance of its abrasive geometry are vital for securing finishing efficiency and part accuracy.

Grinding Wheel Marking System (ISO 525)

Conventional grinding wheels are specified using a standardized alphanumeric sequence. Example: WA 60 K 7 V

1. Abrasive Type: