CNC Milling Machines Key Terms

Understand technical terms relating to CNC milling machines

CNC milling machines are suitable for machining industrial components in batches. Though CNC milling machines require programming for each type of component, their production rate is quite higher than that of manual milling machines.

Whether you want to buy or rent CNC milling machines, you will need to understand various technical terms relating to them. This guide will explain technical terms for CNC milling machines, such as G codes, canned cycle, tool path and milling cutters.

 

G codes

These codes (also called preparatory codes) are functions in the CNC programming language that begin with the alphabet letter G. A G code provides instructions to the machine about the action or movement to be performed. G codes can initiate various actions such as movement of tool or component, changing tools, and setting a tool or tool set.
Try: You can read through the glossary of technical terms at MachineWorks, a developer of NC simulation and verification technology.

Program zero

In CNC milling machines, positioning of a component is very important, as all milling operations are carried out considering the initial position of the component and tools. Program zero is the initial reference position of a component for any milling operation to be performed.
Try: Toolingu.com, a reputable provider of online training programs, offers a glossary of technical terms, such as G codes and program zero.

Canned cycle

This indicates a program for a set of operations that is started by a single G code. While writing a program for machining a complicated component, canned cycles act as shortcuts for the programmer.
Try: For definition of this key term, read through the glossary of technical terms at MicroSystemsGeorgia.com.

Tool path

As the name indicates, a tool path is the set of co-ordinates, along which the tool moves for completing the machining operation.
Try: To understand the definition of a tool path, read through the CNC glossary at CNCInformation.com.

Rotary tables

A rotary table is an important component of CNC milling machines. In a CNC milling machine, a rotary table is controlled using a stepper motor and milling software.
Try: To learn more about rotary tables and their applications in milling machines, read through information at Sherline Products.

Milling cutters

A milling cutter is an important component of a CNC milling machine, as the performance of the milling machine depends upon it. Selection of the milling cutter depends upon requirements of surface finish, cutting speed and material of the component.
Try: To learn more about milling cutters and their types, read through information at Tool Masters, a manufacturer of industrial cutting tools.

Tolerances

Tolerance is the permissible variation of dimensions of a machined component from the design dimensions. This is an important aspect of a component and before buying or renting a CNC milling machine, you will need to assess your tolerance requirements.
Try: eMachineShop.com provides detailed information about tolerances and their importance.

Copyright © 2011 Business.com, Inc. All Rights Reserved.

---