Comprehensive study material for ITI technical trades, including Fitter Electrician and others. Covers NIMI pattern theory, workshop practicals, safety standards, and industrial manufacturing processes.
Lapping and honing are two fundamental processes used in the manufacturing Industry to achieve precise and smooth surfaces. While they may seem similar, they serve distinct purposes and utilize different techniques and equipment. In this article, we will delve into the world of lapping and honing, exploring their definitions, applications, techniques, and advantages. 1. Introduction … Read more
A machine or a structure is made of a large number of parts and they need to be joined suitably for the machine to operate satisfactorily. Parts are joined by fasteners and they are classified as permanent or detachable (temporary) fasteners. Welded and riveted joints are examples of permanent fasteners. Threaded fasteners like screws, nuts, … Read more
Lathe operations are the processes used to shape the metal in the lathe irrespective of the material used or the way in which the metal is held while it is machined. The common lathe operations are listed below. Chamfering: It is performed by a cutting tool on the edges of faces of the external diameters … Read more
Several types of tools are used to perform different types of operations on lathe. Generally, single-point cutting tools are used whose cutting edge is ground with the necessary angle and clearance. In addition to this multi-point tools are also used on lathe according to work such as drill, reamer, etc. KINDS OF SINGLE-POINT CUTTING TOOLS … Read more
The devices which hold and support the work or tool on a lathe are called lathe accessories. Common lathe accessories are a chuck, face plate, lathe center, steady rest, and mandrel. Lathe Chuck A lathe chuck is a holding device that is used for holding the job firmly against the cutting tool. Types: The following … Read more
Machine A machine is a tool that consists of one or more parts and uses energy to achieve a particular goal. A simple machine is a device that simply transforms the direction or magnitude of a force, but a large number of more complex machines exist. In general, a simple machine can be defined as … Read more
The devices used for holding together two parts of a machine or a structure are called fasteners. Fasteners are divided into two main categories: temporary fasteners and permanent fasteners. Temporary fasteners allow easy unfastening of the parts connected, without damaging the fastening elements, while with permanent fasteners, the parts when joined once cannot be separated … Read more
A rivet is a permanent mechanical fastener. A rivet is often produced in mild steel, wrought iron, copper, aluminum (or alloy thereof) by process of forging. Before being installed a rivet consists of a smooth cylindrical shaft with a head on one end. The end opposite the head is called the tail. On installation, the … Read more
In the present time, different types of machines are used in the industries and plants. These machines are based on new technologies and operate more efficiently than the old ones. Therefore, it is important for students to be updated about the new technologies and machines based on them. In this field, the machine based on … Read more
In workshops and industries, different types of heavy machines are laid down. To hold these machines tightly with their bases, the foundation devices are used. Foundation devices help the machine to run in proper condition and vibration-free. The vibration generated in the machine is transferred to the foundation base through the various types of foundation … Read more
