In this course, you will learn about the power-off process. The power-off process prepares the CNC machining center to be shut down and then turns the power off.
A CNC machining center requires a program to maximize the machine’s capabilities. Creating a CNC program is only performed after a careful planning stage to determine exactly what machining operations and which part dimensions the CNC machining center will need to machine.
Learning Objectives
- Define a CNC program
- Define the steps in CNC programming
- Understand the importance of thoroughly planning the creation of a CNC program
- Define program zero
- Distinguish between machine zero and program zero
- Explain the relationship between work offsets, machine zero, and program zero
- List methods of creating a CNC program
A CNC machining center program is required to be organized in a specific manner for the controller to understand the instructions within the program. Each instruction must also be organized.
Learning Objectives
- Define a stop code
- Define an end of block symbol
- Understand the use of parentheses in a CNC program
- List the two sections of a CNC machining center program
- Distinguish between a block and a word
- Understand the purpose of the program end function
The address of a word in a CNC machining center program defines the meaning of the word. Understanding the meaning of common words in a CNC program is important to recognize what actions the CNC machine tool will perform.
Learning Objectives
- Define the purpose of G codes
- Define the purpose of S, T, and M words
- Understand the importance of G code groups
- Define the meaning of common G codes
- Define the meaning of common M words
- Understand the numeric value of a T word
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Understand the importance of the format of the numeric data in a word
The instructions written in G code programming that produce an action by a vertical CNC machining center are called commands. A command may require a single word, a block, or multiple blocks.
Learning Objectives
- Understand the requirements to command a tool change function
- Understand the requirements to command a spindle function
- Understand the requirements to command a linear movement
- Understand the requirements to command a circular movement
- Understand the requirements for canned cycle commands
Building a CNC machining center program that is versatile requires organizing sections into an order that will safely produce a part that meets all of the part’s requirements.
Learning Objectives
- List common commands used in each section of the body of a CNC program
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Define a safe start block