Laser Cladding Cutting Tool Uniform Diamond Distribution
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Solution Overview
Problem
Existing cutting/polishing tools face challenges in manufacturing complexity, non-uniform distribution of cutting material particles, limited multiple-layer laser cladding capabilities, and susceptibility to performance degradation due to uneven diamond particle distribution and heat exposure.
Innovation Solution
A method involving a laser cladding process where cutting material particles and metal powder with higher specific gravity are sprayed onto a tool body, heated from the lower side to form a cladding layer with controlled distribution, allowing for multiple layer accumulation and uniform particle distribution, and adjusting the angle and temperature to prevent particle exposure and oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional powder metallurgy and sintering schemes are used to manufacture cutting/polishing segments, then the segments can be produced with diamond particles distributed in metal powder, but the manufacturing process becomes complex requiring multiple steps including sintering, hot pressing, and additional welding operations to fix segments to the tool body
Solution Approach 1:
The invention merges the segment manufacturing and tool assembly processes into a single integrated laser cladding operation. The metal powder and diamond particles are mixed and directly cladded onto the tool body in one step, eliminating the need for separate sintering, segment fabrication, and welding operations. This combines multiple discrete manufacturing steps into a unified process, directly resolving the technical contradiction between manufacturing simplicity and process complexity.
Solution Approach 2:
The invention replaces conventional mechanical sintering and welding processes with laser-based cladding technology. Instead of using traditional powder metallurgy sintering followed by mechanical welding to attach segments, the laser cladding process directly bonds the metal-diamond mixture to the tool body through controlled melting and solidification, substituting complex mechanical-thermal processes with a more integrated laser-based system.
2Manufacturing precision
If diamond particles are randomly distributed in metal powder during conventional manufacturing, then the cutting/polishing operation can be performed, but the particle distribution becomes non-uniform leading to inconsistent cutting performance and premature tool degradation
Solution Approach 1:
The laser cladding process incorporates real-time monitoring and control mechanisms that track the distribution of diamond particles during the cladding operation. By monitoring the deposition process and adjusting laser parameters, powder feed rate, and scanning speed dynamically, the system ensures uniform particle distribution throughout the cladding layer, preventing the non-uniform distribution that plagues conventional random mixing methods.
Solution Approach 2:
The invention utilizes controlled changes in laser power, scanning speed, and powder feed rate parameters to optimize particle distribution. By carefully adjusting these process parameters during cladding, the metal powder and diamond particles are deposited in a controlled manner that ensures uniform distribution, unlike conventional methods where random mixing leads to clustering and non-uniformity.
3Volume of moving object
If multiple laser cladding layers are accumulated to increase cutting body thickness and area, then the tool can achieve greater coverage and durability, but the cutting material particles become exposed to oxidation and heat leading to performance degradation
Solution Approach 1:
The invention employs an inert or controlled atmosphere during the laser cladding process to prevent oxidation of the metal powder and diamond particles. By conducting the cladding operation in a protective gas environment (such as nitrogen or argon atmosphere), the cutting material particles are shielded from oxidative damage even as multiple layers are accumulated, resolving the contradiction between increasing tool thickness and preventing harmful oxidation.
Solution Approach 2:
The continuous laser cladding process allows for the accumulation of multiple layers in a sustained operation without interrupting the protective atmosphere. The useful action of layer accumulation continues uninterrupted while the inert environment continuously protects the particles from oxidation and excessive heat exposure, enabling thick cutting bodies to be formed without performance degradation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables the efficient and uniform distribution of cutting material particles, allows for increased thickness and area coverage, and prevents performance degradation, enabling improved cutting performance and tool repair capabilities.
Implementation Method 1
heating the outer surface of the tool body using a heating device installed in a lower side of the outer surface of the tool body
Implementation Method 2
the metal powder is deposited on the outer surface of the tool body while the cutting material particles are distributed in the cladding layer
Implementation Method 3
spraying, to an outer surface of the tool body, the cutting material particles and a metal powder having a specific gravity greater than a specific gravity of the cutting material particles
Data Source
AI summary
There are provided a cutting/polishing tool that may be readily manufactured and have an improved cutting performance, and a manufacturing method thereof.The method for manufacturing the cutting/polishing tool including at least one cutting/polishing body may comprise preparing a tool body, and forming a cladding layer including cutting material particles by spraying, onto an outer surface of the tool body, the cutting material particles and a metal powder having a specific gravity greater than a specific gravity of the cutting material particles while heating the outer surface of the tool body using a heating device installed in a lower side of the outer surface of the tool body so that the metal powder is deposited on the outer surface of the tool body, wherein the cladding layer configures the at least one cutting/polishing body.