A process of making cup-shaped parts from sheet metal blanks with the help of punch is known as:

Explanation:

Deep drawing

• In this process, a sheet metal called blank is placed on a die cavity, held in position using a holding plate or holding ring and pressed against the die cavity using a solid punch.
• The punch travels downwards and forced the black into the die cavity, forming a cup.
• It is a drawing process in which the height of the mug is more than half the diameter.
• Cup-shaped objects, utensils, pressure vessels, gas cylinders, cans, shells, kitchen sink sets are some of the products of deep drawing. 

​Extrusion

• Extrusion may be defined as the manufacturing process in which a block of metal-enclosed in a container is forced to flow through the opening of the die.
• The metal is subjected to plastic deformation and it undergoes reduction and elongation during extrusion.
• The extrusion process is like squeezing toothpaste out of a tube.

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Piercing

• It is a process by which a hole is cut (or torn) in metal. It is different from punching in that piercing does not generate a slug.
• In hole cutting operation, the metal cut out is the scrap. Hence any shear provided must be ground on the punch.
• The main purpose of shear is to reduce the load placed on the punches to accomplish the piercing.
• In piercing punch is of the exact size, clearance is provided on die and shear is provided on the punch.

Open die forging

• The open die forging process can be depicted by a solid workpiece placed between two flat dies and reduced in height by compressing it.
• This process is also called upsetting or flat die forging.
• The die surfaces in open die forging may have simple cavities, to produce relatively simple forging.