Chaplets, Other Engineering

Assignment Help:

Q. Explain the Chaplets.

                                                      OR

 When are chaplets required in moulding practice? What is the material of the chaplets?

Ans. Chaplets : Chaplets are metal spacers used for supporting such large and odd shaped cores which cannot be adequately supported by their own core prints. They are placed in a mould between the mould face and the core. As the mould is filled up with molten metal the chaplets are surrounded by it and ultimately fused into it. The chaplet should be such that its head is larger enough to provide large bearing surface and this stem to fuse quickly into the molten metal. But this happens under ideal conditions only. In normal cases usually complete fusion does not occur, but the chaplet is very tightly gripped by the surrounding metal.

Material of the Chaplets

The material of the chaplet must conform to the molten metal or alloy being cast in order to effect proper fusion. For iron or steel castings, the chaplets are made of tin plate and low carbon steel. So the material of chaplets should be the same or very nearly the same as that of the casting to be made. The surface of the chaplets must be clean, without any trace of corrosion, moisture or oil. Chaplets are shot peened to increase their compressive strength and then tinned before use. Clean chaplets fuse well with the metal and do not cause the formation of holes and discontinuities.


Related Discussions:- Chaplets

Detect the percolation by GUI Matlab, the percolation should be visualize ,...

the percolation should be visualize , and the path of the sphere also. i wanna see the relationship between the number of sphere & the percolation . change the # of sphere and show

Quality engineering and management, Describe the principle parts of a quali...

Describe the principle parts of a quality function deployment matrix

Asymmetric effect - propeller, Asymmetric Effect In general the axis o...

Asymmetric Effect In general the axis of the propeller will be inclined upwards to the direction of flight due to the angle of attack of the aircraft.   This causes the dow

Explain critical path method and idea, Problem 1 Case Study - Developme...

Problem 1 Case Study - Development of a new sewage secondary treatment plant Context and location: Consideration is being given to the development of a new major sewage seco

Jupiter and saturn, Expertsmind.com  brings you unique solution in Electri...

Expertsmind.com  brings you unique solution in Electrical Engineering -           Jupiter and Saturn are made almost entirely of hydrogen and helium with

Interview Technique, Explain interview technique in software engineering in...

Explain interview technique in software engineering in brief?

Junction diode summary, The PN junction region of the Junction Diode has ...

The PN junction region of the Junction Diode has the following significant characteristics: Semiconductors contain two types of mobile charge carriers, Electrons and Holes

#pareto, how to crate pareto charts eith matlab?

how to crate pareto charts eith matlab?

Longitudinal trim, A trimmed flight condition is perhaps best thought of as...

A trimmed flight condition is perhaps best thought of as an equilibrium condition. The simplest trim condition is straight-and-level flight, in which the forces (weight, propulsive

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd