Machining processes, such as lathe turning, drilling and milling, would be classified in what group of manufacturing processes?

Material removing.

Explanation:

Material removing is a process of manufacturing in which the final product is obtained by removal of excess metal which is present in stock.

This process is the most expensive method in the manufacturing processes.

This process is divided into two categories which are discussed below:

Traditional method: The traditional method is the method which is used from ancient times. Turning, drilling and lapping are examples of this process.

Non-traditional method: This type of method is not used generally. It is only used for engineering works of high quality. Electric discharging machining and electrochemical machining are examples of non-traditional methods.

Therefore, lathe turning, drilling, and milling are classified in material-removing manufacturing processes.