The CBN Electroplating Experiment Research Of Worm Honing Tool And Its Tool Matrix Design And The Decrease Control Of Tool Matrix

With the development of modern industrial technology, the basic element-gear is required to satisfy the requirements of high speed, high efficiency and now noise with high load bearing, high hardness of tooth surface, good resistance to pit corrosion, high precision, low roughness of tooth surface and high durability. Therefore, engineers never stop researching the technologies which can lead to get gears with high precision and high hardness surface. This paper analyzes the design of the matrix of the electroplating CBN worm honing tool, its manufacture method and its electroplating process through experiments.The main problems of the electroplating CBN honing tool are its precision and durability. This paper analyzes the process of electroplating which can cause the worm honing tool precision problem and draw the conclusion that the different current density on the cathode can cause different thickness of deposited metal through sample electroplating experiment. Then through the analysis of the experimental data by using the method of linear regression of one variable, the experimental formulas for the calculation of the thickness of deposited metal are gotten. And this provides a theoretical basis for the decrease control in the matrix design of electroplating CBN worm honing tool. Furthermore, through analyzing the influence of the precision of worm horning tool produced by the electroplating process, this paper promotes the design thought, which is correcting the errors caused in the electroplating process through the tool matrix design. And it processes the calculation process according to the machined work piece.Furthermore, this paper sets down a suitable electroplating process for the worm honing tool. The sand cast depositing method is adopted in the most important step of the electroplating process. Through experiment in water, the sand cast depositing method is the best method for sand electroplating. And the values of some factors of electroplating process are gotten through experiments in water and the experiment of simulating tools. Those factors include the density of cathode current, the temperature of plating solution, the value of PH, and so on. Finally, according to the defined value of process parameters, an electroplating CBN worm honing tool is successfully electroplated through experiment.The main improvements in this paper are those. First, the experimental formula are concluded through experiment design and its data analysis. And this will be convenient in controlling the electroplating process of worm honing tool; second, the design method of worm honing tool matrix is improved through combining the experimental formula with its electroplating process. This will directly improve the precision of worm honing tool; third, according to the principle of electroplating and the characteristics of electroplating process of super-hard materials electroplating products, a suitable electroplating process is set and verified through experiments. This is the preparation for its later improvement research.