The process of forming a through hole in a metal workpiece is called drilling.
The hole is formed from the heat generated by friction.
During thermal drilling, an annular collar is formed around the hole in the workpiece.
The main tool involved in the hole formation process is the Formdrill thermal drilling tip. The essence of the action is that during the rotational and translational movement of the tip, friction occurs, which heats the tool and the workpiece to a high temperature of several hundred degrees.
Naturally, such a temperature can cause overheating, so that this does not happen, a collet cartridge with a cooling radiator is used.
Lubrication plays an important role in the application of this technology.
The use of lubricant is required to: increase the durability of the tip; reduce the wear of the tip; prevent sticking of the processed material.
Using the Formdrill thermal drilling method, holes can be formed in materials made of: ferrous metal; low carbon steel; stainless steel; copper; aluminum.
The tips can be ordinary and shearing.
The cutting tip removes the collar from the front wall of the material.
Thread rolling One of the effective methods of creating threads for fastening thin-walled parts is thread rolling.
This method is notable for the fact that no chips are formed.
When rolling, the material undergoes deformation with a force exceeding the yield strength.
The formed rivet increases the wear resistance of the thread surface and the fatigue strength of the metal.
With this method, the efficiency of the taps is affected by lubrication-cooling.
The correct choice of the liquid acting to cool and lubricate the tap improves the quality of the threaded hole.
Advantages of the Formdrill tool and tooling, the hole and thread are obtained with high precision and low roughness; no chips; no additional special equipment is required; high thread strength; high productivity.
09 Martha 2017
