Raise the new approach of diamond thing quality- - solder of laser drill rod

Are solder of the drill rod in vacuum furnace or solder of drill rod of high frequency induction put in sure limitation: ?  ascends Kang to throw Xing? , collectivity heats workpiece is changeful form, heat and drop in temperature time is long. To improve the quality of diamond thing further, delibrate person choose stimulate beam of light to undertake drill rod solder as heat source, solder of laser drill rod heats speed density of fast, power is high, facilitate hold accuse, useful the process that reduced diamond graphitization. Now, home is in the delibrate of this respect is more.
It is drill rod makings with Cu-Sn-Ni-Ti-Si, choose crosscurrent report to encourage CO2 laser, argon gas is safeguarded, when 8.39mm/s of speed of 800W of 3mm of diameter of pulverous ply 0.5mm, facula, power, scanning drill rod makings fuses even, diamond grain is in good condition, layer of solder of the drill rod between the interface reachs best connection position. Zhong Rutao existence that discovers TiC in diamond appearance, take 5 diamond to undertake refusing squeezing ramming test randomly in appearance of sample of drill rod solder, drop quite before grain compressive strength and solder very few.

Ni-Cr alloy is drill rod makings, laser of use 800WYAG solid, laser power 450 ～ 550 W, facula diameter 2.0mm, scanning speed 3 ～ 7mm/s, argon gas safeguards next undertaking drill rod solder, appropriate hold accuse technical parameter, when laser inputs coke ratio to be able to be 0.05 ～ 0.06 KJ /mm2, can ensure solder intensity and diamond does not produce heat to damage, drill rod expects the layer is even and close, diamond appearance has Cr7C3 and Cr3C2 to generate. In grinding experiment, undertake tailing to 10 diamond, wear away means basically is most advanced the damaged that presents blade of channel of wear and tear, cutting, all grinding process drops without those who wear bead is whole almost.

Ni-Cr alloy is drill rod makings, argon gas is safeguarded, the experiment undertakes on laser of numerical control of Ji-H1-T500 horizontal CO2, be in when temperature of drill rod solder 1050 ℃ of 1000 ～ , 6mm of × of facula measure 3mm, power 600 ～ 1000W, scanning speed 8 ～ when 20m/m In, the thing got better outside form appearance, drill rod makings and matrix connection are close, diamond is moist and crackajack, without graphitization, the Cr3C2 that interfacial place generates operated strongly diamond.

Choose beforehand the material of Ni-Cr alloy drill steel that alloy turns, in argon gas safeguards next laser beam welding to receive, successful development goes domestic and international a list of names posted up diamond of solder of first laser drill rod originallies knot abrasive emery wheel. It is power of 6mm of × of 3mm of measure of 1050 ℃ , facula, laser when temperature of drill rod solder 30m/min of rate of 760W, scanning and be in than energy 243.3 ～ 253. Between 5J/mm2 when, solder of laser drill rod is crackajack, drill rod makings is fused and abundant, diamond gives blade tall, flawless with graphitization picture, diamond and place of interface of drill rod makings have Cr3C2 to generate. Undertake weighing bear to delimit brushing to emery wheel of drill rod solder, did not discover grind bead is whole to drop. Zhao light fell to undertake delibrate to emery wheel of end panel of diamond of solder of laser drill rod in same technical condition, also obtained the action of aspiration.

The article arranges storage-rack.onsonhardware.com of processing factory of drill rod solder