Strain gauge and rosettes

Friday, 24 February 2017 by

A strain gauge is a device which is used to measure strain (deformation) on an object subjected to forces. Strain can be measured using various types of devices classified depending upon their principle of operation. Some of them are as follows: 1. Mechanical type, 2. Optical type 3. Pneumatic type 4. Electrical type

Ultrasonic Machining

Thursday, 23 February 2017 by

Ultrasonic Machining is a mechanical type of non-traditional machining process. It is employed to machine hard and/or brittle materials (both electrically conductive and non-conductive) having hardness usually greater than 40RC (Hardness on Rockwell scale-C). It uses a shaped tool, high frequency mechanical motion and slurry.

Thin Cylinders

Tuesday, 21 February 2017 by

When the thickness of the wall of the cylinder is less than 1 10 to 1 15 of the diameter of cylinder then the cylinder is considered as thin cylinder. Otherwise it is termed as thick cylinder.