Grinding Machine
Posted by Vishnu on April 18th, 2010 11:16 AM | No Comment
5.12 Grinding Machine
Grinding machine is a machine used for the process of removing material by the abrasive action of a revolving wheel on the surface of a workpiece. The wheel used for performing the grinding operation is known as Grinding ...
Milling Operations
Posted by Vishnu on April 18th, 2010 11:12 AM | No Comment
5.11.6 Milling Operations
The various operations that can be performed on a milling machine are
Plain or slab milling Face milling Angular milling Form milling
Straddle milling Gang milling
1. Plain or slab Milling
It is the process employed for machining a ...
Principal parts of milling machine
Posted by Vishnu on April 18th, 2010 11:05 AM | No Comment
5.11.4 Principal parts of milling machine
The main parts of milling machine are
1. Base
It is a heavy casting provided at the bottom of the machine. It is accurately mechined on both the top and bottom surfaces. Column of the machine is ...
Milling Machine
Posted by Vishnu on April 18th, 2010 11:01 AM | No Comment
5.11 Milling Machine
Milling is the machining process in which metal removal takes place due to the cutting action of a revolving cutter when work is fed past it. The revolving cutter is held on a spindle or arbor. The work ...
Oxy-Acetylene welding equipment
Posted by Vishnu on April 18th, 2010 10:57 AM | No Comment
5.10.2 Oxy-Acetylene welding equipment
A typical oxy-acetylene welding equipment is shown in fig.5.59. It contains the supply units for oxygen and acetylene with associated regulators and the torch, which mixes the two gases before they are ignited. The oxygen is normally ...
Gas Welding
Posted by Vishnu on April 18th, 2010 10:51 AM | No Comment
5.10.1 Gas Welding
As the name indicates gas welding also called as oxy-fuel gas welding derives the heat from the combustion of a fuel gas such as acetylene in combination with oxygen. The process is a fusion welding process. The heat ...
Welding Electrodes
Posted by Vishnu on April 18th, 2010 10:30 AM | 1 Comment
5.10 Electrodes
The electrodes used for arc welding can be classified into two types, viz. consumable and non-consumable electrodes. When a consumable electrode is employed the tip of electrode melts under the arc along with the parent metal. The molten metal ...