CASTING - PowerPoint PPT Presentation

About This Presentation
Title:

CASTING

Description:

This process is used to produce a fabricated object, a part, or casing. ... used in automobile manufacture industry, such as the casting of engine blocks or ... – PowerPoint PPT presentation

Number of Views:152
Avg rating:3.0/5.0
Slides: 15
Provided by: hsar
Category:
Tags: casting

less

Transcript and Presenter's Notes

Title: CASTING


1
CASTING
  • Hassan Sarwar
  • ME100
  • 4M-10C
  • Oct 18, 2005

2
OBJECTIVE
  • Objective of this presentation is to give an
    introduction on the process of casting, which is
    widely used in mechanical engineering.

3
WHAT IS CASTING?
  • It is a process in which a hot liquid material is
    introduced into a mold of a specific shape.
  • After it cools down, it forms the specific shape
    of the mold.

4
Where is it used?
  • This process is used to produce a fabricated
    object, a part, or casing.
  • It is widely used in automobile manufacture
    industry, such as the casting of engine blocks or
    cylinder heads.
  • It is also used to form various types of liquids,
    meltable plastics and materials.

5
Four elements of Casting
  • There are four elements of casting
  • Pattern
  • It is the original template from which the
    mould is prepared.
  • Mold
  • It is the place with a specific shape, where
    we put our liquid metal to duplicate the shape of
    mould.

6
Four Elements of Casting Continued
  • Cores
  • Cores are basically used to produce
    tunnels and holes in our shape.
  • Part
  • The part is the final product of this
    process.

7
CASTING WITH RESPECT TO DIFFERENTIAL
  • What is differential?
  • Differential is a device which consists of gears
    in a car, and it proves equally torque to the
    driving wheels.

8
How is it related to casting?
Fig
9
How is it related to casting? Continued
  • In this picture, you can see it is consisted of
    different type of components.
  • The casting here is used to create the component
    of this differential.
  • They took a material in liquid form, and put it
    into a mold, which eventually looks like this
    component.
  • Thus, when the liquid is solid, it forms this
    shape.

10
TYPES OF CASTING
  • There are many different types of casting.
  • However, I am only going to talk about few types
    of casting used in manufacturing because of the
    time limit.

11
SAND CASTING
  • In sand casting, sand is the main source for the
    casting.
  • It is fast and requires only few days to dry. It
    is the oldest yet the best technique of
  • casting.
  • It is usually used for processing low-temperature
    steel and aluminium, magnesium and nickel alloys.

12
PLASTER CASTING
  • In plastic casting, plaster is used for casting.
  • It requires less than a week to prepare.
  • The plaster compound usually consists of 70-80
    of gypsum and 20-30 strengthener and water.
  • It is used to prepare metals such as Al, Zn or
    copper based alloys.

13
SHELL MOLDING
  • In this type of casting, a mixture of sand and
    3-6 resin holds the grains together.
  • This type of casting takes weeks to get ready.
  • It is usually used to create objects from
    aluminium and magnesium.

14
SOURCES
  • http//en.wikipedia.org/wiki/Casting
Write a Comment
User Comments (0)
About PowerShow.com