Investment Casting (Lost Wax Process)

-

Investment casting is expandable mold metal casting process which is also known as lost wax process because the pattern is made up of wax and is melted away when it is heated. Wax is recovered and can be used again and again that’s why this process is called investment casting process.

Steps involve in investment casting

Step 1 

First and most unique step is the making of the patter which is of wax. A few number of pattern are attached to the wax sprue



Step 2

Pattern attached to wax sprue is then fully dipped in the refractory material tank so that it is fully covered by the refractory material. It is them drayed to make it rigid



Step 3 

Pattern is now inverted and heated to remove the wax from it. After the removal of the wax patter is now hollow from inside and metal can be poured in it


Step 4

To remove all the contaminants from the mold it is heated at very high temperature and them hot molten metal is poured into it and then kept for a long time for cooling



Step 5

After the metal is cooled refractory material is removed and pattern is removed from the metal sprue




Advantages of investment casting


  • Complex parts can be manufactured
  • High dimensional control
  • Good surface finish
  • Wax is recovered
  • No machining is required
  • Net shape process

Disadvantages of investment casting


  • Take more time than other processes
  • Expansive than other processes


Talha Atta is an automotive expert and one of the finest technical content writers from Pakistan. Talha owns WheelWisely.com and is Chief Editor at AutoGlobes.com. He has covered extremely granular content about structures, manufacturing process, automotive, materials and renewable energy. Connect with him on Upwork or check out more of his work on LinkedIn.

Comments

Post a Comment

Popular posts from this blog

Deflection of Beam Lab Report (Simply Supported Beam)

-
Image
To understand the deflection of beam Objective of  deflection of beam lab report 1. Learn basic working of beam 2. Perform theoretical calculation for deflection of beam 3. Perform series of experiment with different material, shapes and load  for beam 4. Compare the result and Discuss the finding Introduction to  deflection of beam Load supporting element in any structure that is installed in horizontal direction and take load perpendicular to its length is called a beam.   Based on the way it is installed in structure, beam can be classified in to four main types.  First simply supported beam which have supports at its both ends, second is overhanging beam which have length extended over its supports, third is overhanging beam which have more than two supports and fourth is cantilever beam which fixed only at one end and other end is free.  There are three basic types of supports available for beams which includes fixed ends support, pined connection support and roller end support.
Read more

Bending Moment in a Beam Lab Report

-
Image
Aim of Bending Moment in a Beam Aim of this experiment is to study effect of force magnitude on bending moment of beam Recommended:   Deflection of Beam Lab Report Theory Bending Moment in a Beam Beams A structural element which is designed and used to bear high load of structure and other external load is called beam. There are many different types of beam like cantilever beam, simple supported beam and overhanging beam.  Bending of Beam When an external load or the structural load applied in beam is large enough to displace the beam from its present place, then that deflection of beam from its resent axis is called bending of beam.  Bending Moment In simple words bending moment is the product of force applied on beam with the distance between the point of application of force and fixed end of the beam Introduction to Experiment of Bending Moment in a Beam This experiment is about studying the effect of force magnitude on bending of beam and for that structure hardwar
Read more

Bernoulli Experiment Lab Report

-
Image
Aim of Bernoulli experiment Aim of this experiment is to compare the behaviour of ideal fluid and real fluid using Bernoulli experiment. Objective of Bernoulli Theorem 1. Use the venture meter apparatus to perform Bernoulli experiment and the effect of area of the flow velocity and fluid pressure 2. Use the Bernoulli’s equation /  Bernoulli theorem  to compare the behaviour of ideal and real fluid Introduction  Bernoulli Experiment According to the Bernoulli’s experiment when area available for the fluid to flow decrease then flow of fluid increase and at the mean while time the fluid pressure or the fluid potential energy decreases. Read about the Effect of Sluice Gate on the Flow of Fluid .  This principle was name after the Daniel Bernoulli who first writes this principle in book named Hydrodynamic.  Following are some of the application of the Bernoulli experiment Find the Air-flight Lift Baseball Draft Sailing Theory of Bernoulli's Theorem Experiment According to Mil
Read more