Jul 22, 2024  
College Catalog 2021-2022 
College Catalog 2021-2022 [ARCHIVED CATALOG]

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ATAP 2330 - EDM RAM-G & M Programming & Machining

Credit Hours: 2.00

Prerequisites: None

This course teaches the general concepts of RAM Electrical Discharge Machining, a method involving electrical discharges between an electrode and a conductive workpiece to remove material in a non-conventional manner. Through lecture and lab assignments, the student will learn multiple EDM skills, beginning with an overview of EDM technology, followed by electrode material selection, proper design of electrodes, spark gap theory, and the principles of 2D and 3D electrode orbiting. Terminology used in the field of RAM, Wire, and Fast Hole EDM will be emphasized, accompanied by demonstrations, student programming, and EDM setup and operation.

Billable Contact Hours: 2

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Outcome 1: Upon completion of this course, students will be able to identify RAM EDM burn areas.


  1. Sharpen corners previously left round from milling operations.
  2. Burn deep areas that conventional machining methods cannot perform.

Outcome 2: Upon completion of this course, students will be able to design RAM EDM electrodes.


  1. Select proper grade of graphite.
  2. Use existing CAD surfaces.
  3. Extend electrode surfaces for clearance.
  4. List burn locations for RAM EDM operation.

Outcome 3: Upon completion of this course, students will be able to machine RAM EDM electrodes.


  1. Create and run CNC programs.
  2. Drill holes for flush.
  3. Mount in holders.

Outcome 4: Upon completion of this course, students will be able to program RAM EDM machines.


  1. Define proper power settings.
  2. Determine proper spark gap size.
  3. Compare negative and positive polarity settings.
  4. Design for speed, wear, or finish requirements.
  5. Program burn locations.

Outcome 5: Upon completion of this course, students will be able to setup and operate RAM EDM machines.


  1. Setu workpiece.
  2. Define X0 Y0 Z0.
  3. Dry run programs.
  4. Execute live programs.

• Communication: The graduate can communicate effectively for the intended purpose and audience.
• Critical Thinking: The graduate can make informed decisions after analyzing information or evidence related to the issue.
• Global Literacy: The graduate can analyze human behavior or experiences through cultural, social, political, or economic perspectives.
• Information Literacy: The graduate can responsibly use information gathered from a variety of formats in order to complete a task.
• Quantitative Reasoning: The graduate can apply quantitative methods or evidence to solve problems or make judgments.
• Scientific Literacy: The graduate can produce or interpret scientific information presented in a variety of formats.

CDO marked YES apply to this course:
Communication: YES
Critical Thinking: YES
Global Literacy: YES
Information Literacy: YES
Quantitative Reasoning: YES
Scientific Literacy: YES


  1. EDM Overview
    1. History
    2. RAM EDM
    3. Spark Gap Theory
  2. RAM EDM Setup and Operation
    1. EDM Startup and Grid Procedures
    2. Mounting an electrode into a RAM EDM
    3. Setting work zero
  3. CNC RAM EDM Operation
    1. Start up and Grid Procedures
    2. Program Run Procedures
    3. Basic Set-Up Procedures
  4. Manual Programming
    1. G & M code programming

Primary Faculty
Walters, Gary
Secondary Faculty

Associate Dean
Pawlowski, Timothy
Hutchison, Donald

Official Course Syllabus - Macomb Community College, 14500 E 12 Mile Road, Warren, MI 48088

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