What are the differences between a lathe and a milling machine

Lathes and milling machines are two common types of metalworking machine tools, and they have obvious differences in design, function and application. The following is a detailed comparison between lathes and milling machines:

1. lathe
   

   Definition: A lathe is a type of machine tool used to rotate workpieces and process them through cutting tools. The workpiece rotates on the spindle, and the cutting tool moves along the workpiece to cut the material.

   Working principle: A lathe processes by rotating the workpiece while keeping the cutting tool fixed or moving. The main operations include turning, boring, end face processing and thread processing, etc.

1.1 main uses:

It is mainly used for processing rotary body parts, such as shafts, sleeves, discs and threads, etc.

It can perform processing on outer circles, inner holes, end faces and conical surfaces.

1.2 Common Types:

center lathe

CNC Lathe

vertical lathe

precision lathe

1.3 Typical Processing Operations:

cylindrical lathe cutting

Inner hole turning

cut off

thread machining

2.Milling Machine

A milling machine is a type of machine tool that removes materials by rotating cutting tools. The workpiece is usually fixed on the worktable, and the cutting tool rotates and moves to perform cutting.

Working principle: A milling machine processes by rotating the cutting tool and moving the workpiece or tool on multiple axes. It can perform processing on planes, grooves, gears and complex shapes.

2.1 Main Uses:

It is used for processing flat surfaces, grooves, gears and parts with complex shapes.

Drilling, reaming and boring operations can be carried out.

2.2 Common Types:

vertical milling machine

horizontal miller

CNC Milling Machine

universal milling machine

2.3 Typical Processing Operations:

surface milling

face milling

angular milling

Contour milling

3.application example

Lathe: It is used for processing parts such as automotive axles, mechanical rotors, and flange connection components that require high-precision rotating bodies.

Milling machine: It is used for manufacturing molds, mechanical parts, and parts with complex geometries, such as gears, cams, and helical grooves, etc.