The Performance Of A New Self-lubricated Diamond Sawblade

In traditional electroplating or sintering diamond sawblade, the diamond grits are distributedrandomly and buried mechanically. The segregation of diamond grits often results in the difference ofconcentration and density. Therefore, some grits are wasted because of redundancy; and others,shattered due to overload. Moreover, the mechanical retention force is so weak that all grits are easilyknocked off by the strong impact force generated during cutting. Finally, the friction betweensawblade and workpiece will lead to the rise in temperature of the processing region, which will pronethe diamond to graphitization. Above all, all of these factors will decrease the efficiency and increasethe consumption of the diamond sawblade.In order to overcome these questions, many methods have been proposed. Order distributedgrains could make diamond uniformly force during the processing, which would raise diamondutilization efficiency and reduce consumption; Brazed diamond technology could hold diamondfirmly, which would prevent premature loss of the grit; Self-lubricated technology could reduce thefriction between diamond sawblade and workpiece, so it would drop the temperature. Therefore, anew self-lubricated diamond sawblade was designed, and by contrasting experiments, the paperresearched the cutting performance of this diamond sawblade.The main contents are summarized as follows:(1) A new self-lubricated diamond sawblade was designed, which can combine the orderdistributed grains technology, brazed diamond technology and solid self-lubricated technology.Moreover, the making process of new diamond sawblade was confirmed, and the effect of the brazeddiamond was assessed.(2) Contrasting to the bronze bond sawblade, the sawing forces, force ratio and average force ofsingle active diamond grain of the new self-lubricated diamond sawblade were analyzed; Afterobserving the surface morphologies of the new self-lubricated diamond sawblade, the main failuremechanisms of diamond grains were analyzed.(3) Many different cutting performances of diamond sawblade were compared, which werecarried out by the different of diamond grains distributions, the diamond horizontal interval andgraphite content.