Understanding Cylindrical Grinding Services: Amon Engineering Melbourne

25 May 2020

Amon Engineering Melbourne offers many solutions for your precision grinding needs, among those is cylindrical grinding. Our experienced toolmakers utilize OD grinders, ID grinders and centre-less grinders to provide a wide range of cylindrical grinding services. Below are the information you need to understand more about  cylindrical grinding services.

Cylindrical Grinding Basics

The cylindrical grinder is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to such shapes as a cylinder, an ellipse, a cam, or a crankshaft.

Cylindrical grinding is defined as having four essential actions: the work (object) must be constantly rotating, the grinding wheel must be constantly rotating, the grinding wheel is fed towards and away from the work and either the work or the grinding wheel is traversed with respect to the other. While the majority of cylindrical grinders employ all four movements, there are grinders that only employ three of the four actions

OD Grinding (Outside Diameter Grinding)

OD grinding is grinding occurring on external surface of an object between the centres. The centres are end units with a point that allow the object to be rotated. The grinding wheel is also being rotated in the same direction when it comes in contact with the object. This effectively means the two surfaces will be moving opposite directions when contact is made which allows for a smoother operation and less chance of a jam up. Material is held between centres and rotated as the grinding wheel travels up and down the length of the part. OD grinding allows cylindrical parts to be ground to precise dimensions and finishes.

ID Grinding (Inside Diameter Grinding)

The work piece is held in a chuck and rotated as the grinding wheel moves in and out of the ID to remove material and achieve the proper dimension and finish to meet customer expectations. ID grinding creates a high degree of accuracy on the inside diameter dimension of the product as well as a precision surface finish.

Centre-less Grinding

The work piece is supported on its own diameter by a work blade between a slow speed regulating wheel and a larger high speed grinding wheel. Correcting out of round conditions on cylindrical parts as well as achieving some of the best dimensional tolerances and surface finishes available in the metal working industry makes centre-less grinding the correct choice for many projects.

Cylindrical Grinding Control Methods There are three basics ways in which an operator can interact with a cylindrical grinder. Either manual manipulation of the machine, Numerical Control with a punched card system or using Computer Numerical Control using a pre existing interface designed for that machine or by using a PC as an interface to communicate with the grinder. The first two options are rarely if ever used today. CNC operated cylindrical grinders are the most technologically advanced, efficient, reliable systems in the manufacturing industry.

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