Superabrasive Grain Setting Method for Grinding Tools
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Solution Overview
Problem
Existing methods for arranging superabrasive grains on grinding tools with complex surface shapes, such as taper, rounded, and end surfaces, result in consecutive grain lines that lead to reduced grinding accuracy, delayed abrasion, and uneven metal removal during grinding operations.
Innovation Solution
A superabrasive grain setting method that involves developing non-cylindrical surfaces into circular-arc belt-like surfaces and rectifying mounting points to prevent consecutive alignment in the circumferential direction, ensuring uniform distribution and optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If superabrasive grains are arranged in a grid pattern on mounting surfaces with taper, rounded, or end surfaces, then the grains align consecutively in the circumferential direction at specific areas, but this causes grinding accuracy to deteriorate due to consecutive grain lines
Solution Approach 1:
The patent applies asymmetry by rotating the grid pattern at specific angles (15-75 degrees) relative to the circumferential direction of the mounting surface. This asymmetric orientation prevents the formation of consecutive grain lines in the circumferential direction, thereby eliminating the grinding accuracy deterioration caused by aligned grain patterns while maintaining the simplicity of grid-based arrangement.
2Ease of manufacture
If superabrasive grains are arranged in a grid pattern, then the arrangement process is simple and uniform, but consecutive grain lines cause some abrasive grains to be delayed in abrasion and reduce productivity
Solution Approach 1:
By orienting the grid pattern asymmetrically at 15-75 degrees relative to the circumferential direction, the patent breaks the consecutive alignment of grains. This ensures that all abrasive grains are positioned to actively participate in grinding operations, preventing delays in abrasion and maximizing productivity while retaining the ease of grid-pattern manufacturing.
3Ease of manufacture
If superabrasive grains are arranged in a grid pattern on complex surfaces, then the arrangement is uniform, but consecutive grain lines cause uneven metal removal and increase device complexity requirements
Solution Approach 1:
The patent resolves the contradiction by introducing asymmetric rotation of the grid pattern at 15-75 degrees. This simple rotational adjustment eliminates consecutive grain lines and their harmful effects on metal removal uniformity, while avoiding the need for complex mounting processes or specialized equipment.
Data Source
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AI summary
In a superabrasive grain setting method, a two-dimensionally developed coordinate preparation step is taken, wherein a non-cylindrical area of a mounting surface where a tangential line to the mounting surface in a plane including the axis of the manufacturing mold crosses with the axis of a manufacturing mold is developed into a circular-arc belt-like surface, and a plurality of mounting points are set on the circular-arc belt-like surface in a grid pattern in dependence on mounting positions for superabrasive grains. Then, a rectification step is taken, wherein the grid pattern of the mounting points is rectified in predetermined angular ranges so that the mounting points do not make consecutive point lines in the circumferential direction of the circular-arc belt-like surface. A mounting step is thereafter taken of mounting the superabrasive grains on the mounting surface of the manufacturing mold based on the grid pattern rectified at the rectification step.