This set of Forming Quiz focuses on “Impression Die Forging”.
1. In compressed impression die forging, what is typically the shape of the solid blanks?
Explanation: In compressed impression die forging, it is generally observed that the shape of solid blanks is either cylindrical or prismatic only. The shape of the solid blanks is similar even in case of stamping industry.
2. Which of the following is not an operation of impression die forging?
Explanation: There are many basic and primary operations in impression die forging, a few of them are, broaching, bending, spreading, sizing and swaging. But, quenching is not any of the operation of impression die forging.
3. Which of the following is not produced using impression die forging?
d) Turbine blades
Explanation: Impression die forging finds itself into variety of applications. They are used in making a few automobile parts also. Among the following, levers, gears and turbine blades can be produced using impression die forging, but not handles.
4. Which of the following are not operated in impression die forging?
d) Special purpose machines
Explanation: In impression die forging, there are various such articles which can be forged, but after that need a little working on it. To accomplish that, hammers, presses and some other special purpose machining tools are employed. A tong is not one of them.
5. In forging dies, what is the maximum degree to which the drafts are made?
Explanation: In impression die forging, there has to be some amount of allowance given to the process, like machining allowance and draft allowance. The drafts are made with a maximum degree deviation of 10o.
6. In forging dies, what is the minimum degree to which the drafts are made?
Explanation: There are some types of allowances which have to be given to the system before the operations begin, like, shrinkage allowance, machining allowance and draft allowance. The minimum angle which can be given to the drafts is only 3o.
7. What is the minimum temperature given before hot forging?
Explanation: Hot forging is a method of forging articles at an extremely high temperature. But, before putting the article into the hot forging processes, it has to be heated to certain temperatures. The minimum temperature that has to be given to the article should be 200°C.
8. What is the maximum temperature that can should be given before hot forging process?
Explanation: In impression die forging, when any article has to be hot forged, it has to first be heated to bring at a certain temperature. The maximum temperature that can be provided for hot forging is 300°C.
9. Impression die forging is used only for multiple-pass process.
Explanation: In impression die forging, there are two types of pass processes, one is single-pass process and another is multiple-pass process. Multiple-pass process includes final stamping process in it.
10. Cold impression die forging is suited for mass production.
Explanation: Cold impression die forging is the most unsuited way of production when it comes to long productions or mass amounts of manufacturing. This is because, in cold impression die forging, there is a need of complex and expensive dies, which end up making the process unnecessarily costly.
Sanfoundry Global Education & Learning Series – Forming.
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