China 
Africa 
Explore chapters and articles related to this topic
Toolholders and Workholders
Published in David A. Stephenson, John S. Agapiou, Metal Cutting Theory and Practice, 2018
David A. Stephenson, John S. Agapiou
Another system comparable in performance to monolithic toolholders uses a straight shank that is secured in the spindle nose using a shrink fit (Type K). The advantage of this method is that the shrinking process is reversible for carbide shank tools. Standard straight shank carbide tools are shrunk into the spindle nose shaft with a high interference fit. In this case the spindle nose is induction heated; with the proper match of materials, the shank expands less than the spindle shaft, eliminating the interference and allowing for removal of the toolholder. A shrink fit provides the best possible TIR, inherent balance, and gripping force. However, the shrink fit requires the spindle shaft to be extended out of the spindle housing by an amount equal to the tool shank length shrunk into the spindle shaft pilot.
Rotor Design
Published in Wei Tong, Mechanical Design and Manufacturing of Electric Motors, 2022
Shrink fit is a semipermanent assembly system that can transmit large torques through the creation of high contact pressure at the interface of its mating components. Being a tight joining method, shrink fit has been extensively used in various industries due to its high joining strength and reliability. There are a number of benefits to using shrink fit over press fit: (a) shrink fit can minimize mechanical stresses associated with the pressing operation and thus reduce the deformation of the rotor core; (b) it allows a rotor core to shrink onto a shaft symmetrically; (c) the requirement of surface finishing for shrink fit is relatively lower than that for press fit; and (d) the process of shrink fit is completely controllable.
Effects of homogeneous and inhomogeneous heating on rotating shrink fits with annular inclusion and functionally graded hub
Published in Journal of Thermal Stresses, 2019
Tunç Apatay, Eray Arslan, Werner Mack
The subject of the study is a shrink fit compounded of a homogeneous hollow cylindrical inclusion and an FGM-hub see Figure 1. The inner and outer surfaces are presumed to be stress-free, i.e., throughout the article, the indices i and h denote the inclusion and the hub, respectively, and standard cylindrical coordinates are employed. For a shrink fit with a hub with an axial length L about equal to (or larger than) the diameter of the inclusion a treatment as a (generalized) plane strain problem is appropriate. Hence, the condition of vanishing axial force on any section, determines the spatially constant axial strain there, ω means the angular speed and the difference of current and ambient temperature. At the interface the radial stress must be continuous, i.e., and the radial displacements uj must comply with the relation where d denotes the interference.