What is Curvic coupling?

What is Curvic coupling?

Curvic Couplings In essence, the curvic coupling is a ring of precision ground face splines that are meshed after index. The splines, or radial teeth, are ground in such a manner that on one member the sides of the teeth surfaces that meshed are convex and on the other member the sides are concave.

How are Curvic couplings manufactured?

The manufacture of Curvic couplings involves the precision cutting and grinding of mating teeth on the adjacent ends of the components; the assembly is then clamped together with bolts.

What is a curvic grinding machine?

Gleason Curvic® Coupling Grinding Machines are high-speed large bore spindle machines for grinding curvic teeth in face couplings. A fully-automatic grinding cycle enables the production of extremely accurate and uniform couplings at high production rates. Workpiece diameter – part, max.

What are the advantages of curvic coupling?

The other important advantage of the curvic coupling is that its accuracy in both axes actually improves with use, rather than degrades. Care should be taken in the necessity of guarding against the entry of chips or other debris into the seating area.

What is the difference between Curvic couplings and torque pins?

For the connecting structure, discs with torque pins are connected with bolts on the compressor rotor side, while discs with curvic couplings are connected with bolts on the turbine rotor side. Both of them have a structure of delivering torque without fail. Steam Cooling Structure of Blades and Vanes

What is Curvic grind?

Curvic Grinding is among the most challenging grinding applications performed at Metalex, with the precision fit of each curvic interface being essential to the successful function of critical assemblies for highly engineered and demanding applications.

How does a Hirth coupling work?

Hirth joints consist of radial grooves milled or ground (or both) into the end face of a cylindrical feature of a part. Grooves are made one by one into the part tilted by the bottom angle of the grooves, and rotated from groove to groove until the serration is complete.

What is a Hirth?

A Hirth joint or Hirth coupling is a type of mechanical connection named after its developer Albert Hirth. It is used to connect two pieces of a shaft together and is characterized by tapered teeth that mesh together on the end faces of each half shaft.

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