The document discusses various fabrication methods in robotics, particularly emphasizing welding and machining processes. It defines fabrication and contrasts it with manufacturing, highlighting the role of welding in creating permanent joints for various applications. Additionally, it details the machining process for shaping components by removing excess material to achieve desired specifications.

1. BRA302-Fabrication Methods of Robotics
Components
By
Dr.Selvaraj Manickam M.E., PhD.,
Professor
Department of Automation and Robotics
IMPACT College of Engineering & Applied Sciences
Bengaluru-5600092.
Automation and Robotics
2nd
Year III -Semester
Module-1

2. Identify joining methods for fabrications, and fabricate simple job using
joining method.

3. Methods of Fabrication:
Introduction to Fabrication:We often hear the terms
“fabrication” and “manufacturing” used interchangeably, but
they actually have different meanings. While both involve the
production of a product, they do so in very different ways. In
this blog post, we’ll break down the difference between
fabrication and manufacturing so that you can better understand
how each one works.

4. Definition of Fabrication Methods:
• Welding is metallurgical fusion process, where part to be joined by the
application of heat and pressure.
The Welding is a process of joining two or more, similar or dissimilar
metals by heating them to a suitable temperature , with or without the
application of pressure, filler materials and flux.
Welding is used for making permanent joints.
It is used in the manufacture of automobile bodies, aircraft frames,
railway wagons, machine frames, structural works, tanks, furniture,
boilers, general repair work and ship building.

7. Types of Welding Positions

8. Types of welded Joints

9. Types of Welding

10. Depending upon the different phages of base
and filler material

13. Machining
The purpose of metal cutting operation commonly called machining is to
produce a desired shape, size and finish of a component by removing
excess metal in the form of chips from a rough block of material.
Therefore, primary objective in metal cutting is production of chips;
which are removed to obtain a component and eventually the chips are
thrown away. These chips may constitute more than 50% of the initial
workpiece material. Generally, machining processes should be carried
out at high speeds and feeds with least cutting effort at a minimum cost.

14. It is an oblique cutting and it is a process of creating a hole. Drills are
made by forging operation and the material used is HSS steel. Drills are
made slightly smaller in size so that there is some margin for reaming.