Q. With reference to the 3D Printing technology, consider the following statements:
1.It is a technology that is Produces objects layer by layer.
2.Subtractive manufacturing is a more advanced version of this technology that is going to play a pivotal role in Industrial revolution 4.0
Which of the statements given above is/are correct?
Subtractive manufacturing or Machining (traditional method) is an umbrella term for various controlled machining and material removal processes that start with solid blocks, bars, rods of plastic, metal, or other materials that are shaped by removing material through cutting, boring, drilling, and grinding.
In contrast to the subtractive process of removing material from a larger piece, additive manufacturing or 3D printing processes build objects by adding material one layer at a time, with each successive layer bonding to the preceding layer until the part is complete.
Source- Article

