金刚石线锯的制备及使用性能综述OA

Objectives:Diamond,renowned for its exceptional hardness,high thermal conductivity,remarkable wear resistance,and chemical inertness,has become indispensable in the cutting of semiconductor materials such as silicon carbide(SiC),sapphire,and gallium nitride.As demand for these advanced materials grows in the electronics and optoelectronics industries,the performance requirements for cutting tools become increasingly stringent.This paper aims to provide a systematic review of the current state of three primary diamond wire saw preparation technologies:electroplating,resin bonding,and brazing.The objective is to critically analyze and compare these fabrication methods,elucidating their respective principles,advantages,limitations,and influence on cutting performance across different applications.Furthermore,by identifying key technical challenges,this review proposes viable directions for future research and process optimization to enhance the comprehensive performance of diamond wire saws.Methods:This study undertakes a thorough review of existing literature,encompassing key research findings from both domestic and international academic sources.The methodology involves a structured comparative analysis of the three preparation technologies,examining their specific technical characteristics,including base wire materials,bonding mechanisms between diamond abrasives and the substrate,diamond grit properties(size,shape,concentration,and surface condition),preparation apparatus,and critical process parameters.Beyond technical description,this review analyzes the performance of the resulting wire saws during actual cutting operations,evaluating key indicators such as cutting efficiency,surface quality of sliced wafers,tool wear mechanisms,lifespan,and cutting stability.By correlating manufacturing parameters with performance outcomes,the primary factors influencing the efficacy of each wire saw type are identified and discussed.Results:Electroplated diamond wire saws,owing to their mature and well-established preparation process achieve large-scale industrial application in cutting materials such as photovoltaic silicon crystals,sapphire,and marble.However,a significant limitation lies in the relatively low bonding strength between the diamond grits and the substrate,which restricts the tool's lifespan and cutting efficiency when processing high-hardness materials like silicon carbide(SiC)and sapphire.Nevertheless,their inadequate heat resistance and wear resistance constrain their applicability in high-speed cutting scenarios.In contrast,brazed diamond wire saws achieve substantially enhanced bonding strength through a metallurgical bond between the diamond and the matrix.This results in superior cutting performance and durability compared to the other two technologies.Despite these advantages,the brazing process itself presents technical bottlenecks,notably thermal damage to the diamond grits,such as graphitization,and a decline in the mechanical properties of the base wire,necessitating further research and process optimization.Conclusions:Diamond wire saw technology evolves along three distinct paths,each offering unique advantages and limitations that determine suitability for specific cutting tasks.Electroplated saws dominate current industrial practice due to maturity and low cost but are performance-limited by low bond strength for ultra-hard materials.Resin-bonded saws provide flexibility and good surface finish but are constrained by poor thermal stability.Brazed saws offer the highest theoretical performance due to superior metallurgical bonding but face challenges related to thermal damage to both the diamond and the wire substrate.Future research should focus on overcoming these barriers:for brazed wires,developing novel filler alloys with lower melting points to mitigate thermal damage and implementing advanced thermal management strategies;for electroplated and resin-bonded wires,exploring composite matrices and modified resins with enhanced thermal conductivity.Through these targeted improvements,the comprehensive performance of diamond wire saws can be significantly elevated to meet the increasing demands of advanced material processing industries.