2015年3月29日星期日

Diamond grinding cup wheel dressing principle


This method of cbn grinding wheel dressing process, high-speed rotating grinding wheel, diamond grinding wheel connected to the positive supply and the negative electrode power tools, diamond grinding wheels and tools between the electrodes is injected into the grinding coolant, voltage is applied between the tool electrode and the grinding wheel Room will spark discharge between the diamond cup grinding wheel and trim adhesive metal electrodes, temperature instantaneous discharge of the metal binder vaporized metal bonded grinding wheel surface is effectively removed, diamond grains are fully exposed to achieve wheel dressing. Features 3.2 EDM finishing trim can be achieved online, easy to guarantee the accuracy of the grinding wheel, grinding force small wheel trimmed, high-precision shaping and shaping and sharpening can be completed at the same time, but the plastic slower and EDM diamond grinding wheel dressing because the discharge temperature is too high to make abrasive performance changes, effective control of the wheel surface temperature is the key to spark a diamond grinding wheel dressing.

2015年3月25日星期三

How do I fix diamond grinding wheel


Expensive diamond wheel, using the process where there is a groove should be repaired and prolong life, but specifically how to repair the groove of it appearing on the diamond grinding wheel,today give our customers tell us how to fix diamond Wheel;

First to the grinding wheel truing tool, overlapping surfaces before and after each move for 1/3 to 1/2 of the width of the wheel, and then successive feed, # 140, for example, advanced 0.005, to blunt the sound crisp sound, skip to the surface plane level, and then proceed to 0.01 and repeat the sound, surface inspection, and then proceeds to 0.015,0.02,0.025,0.03 sequentially until crisp sound, flat surface, no chatter pattern indicates rounding, dressing complete. The maximum amount of feed renovations need to be adjusted depending on diamond cup wheels size, the greater the more coarse granularity refurbishment infeed! Note: You can pre-coated with an oily pen exotic diamond wheel circumference, when the ink marks disappear completely, it means that the repair work is completed the circle. There are crumbs stick grinding conditions, which can be hand-held strip of sand dressing, so the cutting wheel to restore function! 3 uses centrifugal brake brakes after rounding is necessary then to white sand strip dressing. 4 diamond and boron nitride grinding wheel, once on board, unless the abrasion is completed, it is best not to remove it.

Diamond double row cup wheel repair issues that need attention: if must be removed, along with the need to remove the flange, or if re-use, namely the need to burn off more renovations amount!

2015年3月21日星期六

Electrolytic dressing method of diamond cup grinding wheel


Principle of electrolytic dressing dressing electrolysis method is mainly used for metal bond diamond cbn grinding wheel, while electrolytic dressing, metal bonded grinding wheel with a DC power supply as a positive phase electrolysis anode electrode and the DC power tool as a negative phase electrolysis cathode, between the anode and the cathode having a grinding liquid is injected into the electrolysis of the electrolytic solution as, the diamond grinding wheel, the electrolyte, the tool electrode and the power supply circuit constituting the electrolysis, dressing, so that the electrolyte filled gap between the cathode and the anode, current from flowing through the electrolyte dressing grinding wheel, the surface of the metal component metal bond diamond Plastic Base Grinding Wheel under the action of electrolytic solution agent, dissolved in the electrolyte, and the electrolyte compound hydroxide ions generated by the flow of fine solids electrolyte away, greatly reducing the diamond grinding wheel surface bond strength, this time to use mechanical trimming method, trimming performance you can get a great deal of improvement. So electrolytic dressing is dominated electrochemical, mechanical action, supplemented by a complex method of trimming. 5.2 electrolytic dressing method is characterized by the electrolytic dressing method can facilitate the realization of metal bond diamond wheel ELID and shaping and sharpening can be done at the same time, easy to control the diamond cutting wheel surface state, the advantages of electrolysis dressing diamond grinding wheel is trimmed time is short, small grinding heat, avoid dressing diamond grinding wheel due to high temperature carbide diamond cup grinding wheel life leads to decline, the disadvantage is shaping electrolytic dressing method accuracy is not high, trimming the cost of larger, more complex process.

2015年3月17日星期二

The principle of diamond grinding wheel laser trimming method


Laser trimming method is the use of an optical system for focusing the laser beam to a small spot in the diamond abrasive grinding wheel surface, only a small portion of the laser light is reflected, the majority of the laser is absorbed by the metal binder, the temperature rapidly rises, leading to being irradiated with a laser beam region, the metal binder is vaporized and removed, to remove binder material generally through: irradiation, absorption, heating, gasification several processes. When laser repair wheel, and reasonable control of the laser power density, can remove the surface of the diamond abrasive grinding wheel and a binder material, to achieve the purpose of shaping the wheel, by adjusting the laser processing parameters, also may be selectively removed diamond grinding wheel surface binding agent material, the diamond abrasive grains having a certain projection height and reach diamond grinding wheel dressing purposes. 4.2 Advantages of laser trimming method of laser trimming method is a non-contact method of trimming, trimming neither mechanical force, no trim loss tools, laser action a short time, a small diamond grinding cup wheel in the area of diamond grains and binder are not damage, ensure grain grinding performance, and high efficiency trimming, the disadvantage is trimming process more complicated and costly.

2015年3月13日星期五

Advantages of diamond grinding wheel dressing elastic soft law


Compared with other finishing methods, soft elastic trimming method is more suitable for finishing powder metal bond diamond wheel, because the plastic powder metal bond diamond cutting wheels both metals have high hardness, so trimming rather difficult, mainly in: dressing tool surface abrasive wear quickly, followed by trimming workers prone to clogging chip space can not continue to make dressing. The soft elastic trim Law dressing tools - when the belt is always a new sharp abrasive wheel is trimmed in contact, can form a good dressing environment, effectively removing bonded diamond cup grinding wheel surface between the abrasive and finishing mill cutting force is small, high-quality grinding surface.

2015年3月9日星期一

Features of diamond grinding wheel dressing law


The main advantage of grinding trimming method is: simple structure, easy to operate, repair time is short, cbn grinding wheel speed and stability, lower grinding costs, but the presence of trimming process impact, low dressing efficiency, poor accuracy and abrasive finishing off more , plastic quality is not easy to control. Used for finishing ceramic and resin binder diamond wheel. Principle 2 soft elastic soft elastic trim trimming method method method of trimming 2.1 soft elastic belt at the time set on the belt dressing wheel, diamond grinding wheel rotating at high speed trimming, reel slowly rotating, moving slowly on the belt pulley use of Plastic Base Grinding Wheel contact force belt and wheel combination effectively remove surface grit diamond wheel between so as to achieve the purpose of dressing.

2015年3月5日星期四

Principle of diamond grinding wheel dressing law


  Has a good grinding performance on diamond cup grinding wheel industrial ceramics, carbide, optical glass, diamond tools and other difficult materials gem has a very wide range of applications. However, the presence of high hardness of diamond grinding wheel, trim rather difficult and prone to clogging and other issues in the dressing process, seriously affecting the quality and efficiency of the grinding surface dressing, limiting the application of diamond cutting wheels, a variety of diamond grinding wheel dressing article methods were compared and studied, analyzed the principles of various trim trimming methods, characteristics and use of the occasion. Dressing dressing grinding method is to use an ordinary abrasive grinding wheel and diamond grinding wheel, diamond abrasive grinding wheel rotary motion, while doing ordinary abrasive grinding wheel rotational movement also do feed movement, the role of the abrasive surface of the diamond wheel friction By slowly rotating, rotating metal bond while squeezing a certain pressure to crack the binder, with the continuous effect of friction, resulting in further expansion of the crack binder, binder eventually broken, so blunt diamond particles falling from the wheel surface, revealed sharp diamond particles so as to achieve the purpose of dressing.