How things are made: Let’s Know amazing techniques of manufacturing in 2021

Manufacturing Techniques

Hey there !!

Have you ever noticed how the stuff we have, like cars, bikes, airplanes, stationery items, personal accessories, kitchen hardware, and many more items are made? 

Have you ever imagined how the things around you come into existence? Can you tell me about the process through which a cold drinks cane, maybe you are holding right now, made? It might be yes!

If yes, you are one of the geniuses who understand the logic of creation of things. It is good practice, keep it up!

Well…! Here, I will try to simplify the concept of the manufacturing of stuff in brief. If you are interested, keep reading!


First of all, let’s talk about material. There are plenty of materials available on the face of the earth in various states like solid, liquid, and gasses by which the objects are made.

Let’s talk about only solid material, especially metals. Let’s keep other materials aside for another topic of discussion. Ok !!


Ok, first of all, let me tell you that every metal comes from the earth in the form of ore. Then it is purified to maximum purity level. Every material has a different purification process. Let’s start our discussion after the purification when it is in the molten state.


The very first step of creating things is casting. In this process, the above prepared molten material poured into a cavity of required shape and size called a Mould or die and allowed it to cool to get it shaped.

It is just as simple as Mom makes ice cubes in the ice tray or freezing ice cream in an ice-cream pot to get it in shape. Is it so…? Yes! I like ice cream. 

Most of the plastic items like pens, keys and keyrings, car dashboards, suitcases, plastic chairs, and many more are made through the casting process. However, plastic and glass bottles or containers are made by blow molding or centrifugal casting to get empty space in it.


The next method of making things is forging. In the forging, the material is heated upto a temperature at which it gets softer, then some force is applied on it to acquire the desired shape. 

Now I know whom you are thinking about…!  blacksmith…!. Yes he uses this method to make things from steel… Am I right….?

Are thinking goldsmiths too…!

Oh yes… he also does the same job to make jewelry … but with the precious metals. Such a rich thinking person you are..! It sounds good.


Well.. have you ever sharpened the pencil by sharpener?  Just pay attention.. what you did. You removed excess material from there to get a sharp tip. We do exactly the same in the machining process. 

Whenever an extreme surface finish is required which is not possible through casting or forging, we use a machining process, which means we remove extra or unwanted material from the billet with the help of the cutting tool. 

Lathe, milling, shaper, planner, drilling, grinding, etc. Are the examples of this process.


Sometimes it is impossible or uneconomical to make things in a single piece. That’s why they are made into several parts and then joined together to get to the final shape.

Joining is classified into three groups which are temporary, permanent, or semi-permanent.

Ok. Let me explain… 

Temporary joint

In the temporary joint, the pieces are assembled with the help of nuts and bolts and can be dismantled at any time, for repair and renovation. like the assembly of Finns with the ceiling fan.

Permanent joint

Permanent joints are welding, soldering, or brazing joints, the joined pieces can not be made separate without damaging them.

Semi-permanent joint

Pieces joined by Semi-permanent joints seem to be permanent but they can be separated with special arrangement. Riveted joints are the types of this kind of joint.


When the pieces are connected together to have relative motion between them, it is known as an assembly. 

Automobile engine assembly is an example of this. It has many parts that have a relative motion to each other.


Sometimes the assembly of pieces is known as Fittings. It is of three types which are a loose fit, transition fit, and Interference fit. Hinges are the example of a loose fit. Nailing is an example of an interference fit. Assembly of pen and cap is the example of transition fit.

3D Printing

This is a very advanced technology to create very complicated shapes. For this, we use the 3D printer in which a 3D model or the 3D scanned object can be uploaded. 

The microcontroller converts this program to the machine code and actuates the printer. The material injector applies the material wherever required. 

In this way, the 3D printer creates complicated profiles.

I hope, Now you have a brief idea of manufacturing things. Next time when you see any object around just think how it is made. you will see how amazing the journey of a product from production to consumption 

Production engineering and Mechanical engineering are the branches in which we study the manufacturing techniques and learn the latest techniques which are being used in manufacturing.

Industrial automation and robotics playing a major role in manufacturing Nowadays. That’s why one should have knowledge of these latest manufacturing technologies.

I hope you enjoyed the post. So friends, be in touch with us for such kind of inspiring blogs. Keep learning.

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