rolling-cutter row

The Influence of Design and Technological Factors on the Durability of the Installed Carbide Explosion Equipment of Three-cone Drill Bits

Aim. In the study learning trial was made to make a mathematical model of the assembling process in connections “tungsten carbide insert cutter – cone”, while the methods of mathematical statistics were applied. This makes it possible to determine the parameters of the distribution of the closing link. Accordingly, the tension is determined by samples of constituent links. For this purpose, the amount of tension was investigated.

Improvement in the construction of the “Tungsten carbide insert cutter - cone” joint for tricone drill bits

Meet a claim is quite difficult in real production, even in specialized drilling manufacturers. Therefore, the development of reliable criteria for approaches to improving the technology of tricone drill bits is an urgent problem. This is great practical importance for domestic enterprise. The task is set to create rock-destroying insert in the basis of the developed construction. This allows you to increase the reliability of the connection between the cutter insert and the body of the cone.

The Influence of Technological Factors on the Reliability Connection for Tungsten Carbide Inset Cutter of Roller Cone Bits

Aim. Analysis of used bits revealed the effect when the tungsten carbide insert cutter was scrolling around its axis. Therefore, the task was to study the causes of this phenomenon. Hardness was measured followed by setting the hardness distribution gradient in the section of the hole, in order to evaluate the strength parameters of steel in the zone of the hole. Method. Applying a well-tested method, namely the method of successive approximations, we determined the estimate of the standard deviation and the evaluation criterion.