CNC 205 - CNC Tool Grinding

Credits: 4
Instructional Contact Hours: 4

Introduces CNC grinding equipment to grind rotary cutting tools such as carbide end mills and drills. Uses engineering drawings and part specifications to program machines using offline software. Provides instruction on how to set up and operate grinders, peripheral equipment such as chillers, wheel dressers, wheel measuring equipment, and tool inspection equipment.

Prerequisite(s): MS 181W (or SKTR 181W) and MTH 103 (or SKMA 103 or MT 110), or instructor permission
Lecture Hours: 15 Lab Hours: 45
Meets MTA Requirement: None
Pass/NoCredit: No

Outcomes and Objectives

Demonstrate proper safety practices and care of equipment.
1. Demonstrate safe practices at all times.
2. Demonstrate the proper use of safety equipment while in machine shop.
3. Demonstrate knowledge of safety concerns of machines.
4. Demonstrate how to inspect grinding wheel for damage.
5. Demonstrate practices that error proof and prevent machine damage.
Demonstrate knowledge of tool grinding fundamentals.
1. Describe general grinding overview of grinding and its advantages and limitations.
2. Describe the principles of tool grinding.
3. Identify types of grinding machines.
4. Describe tool grinding processes and equipment.
5. Describe the different types and uses of grinding wheels such as; abrasive type, bond type, grit size, profile, etc.
6. Describe different cutter types and their nomenclature.
7. Identify various parts of a grinding machine and its peripheral equipment.
8. Describe the various support equipment needed to operate CNC grinding equipment.
Demonstrate ability to program machine software.
1. Apply the principles of tool grinding to program machine software.
2. Demonstrate ability to read engineering drawings and translate the part specifications into the programming software.
3. Apply mathematics and trigonometry to find missing part geometry and dimensions.
4. Demonstrate ability to import wheel measurement data.
5. Demonstrate ability to simulate grinding operation to check for part defects and machine crashes.
6. Demonstrate ability to adjust machine programming parameters and wheel offsets to correct defective parts.
Demonstrate proper set up of grinding machines and peripheral equipment.
1. Evaluate grinding wheel for damage.
2. Demonstrate ability to mount, true, and dress grinding wheels.
3. Demonstrate proper use of wheel measuring equipment.
4. Demonstrate proper use and care of chillers and circulating pumps.
5. Assemble and load wheel packs into machine and setup coolant nozzles.
6. Change over machine from one part to another. This will include mechanical and software setup.
7. Perform dry runs to verify proper set-up and prevent machine crashes.
8. Demonstrate proper use of inspection equipment, including tool makers scope, optical comparator, micrometers, calipers, and loupes.
Demonstrate proper use of grinding machines.
1. Successfully run machine in manual mode and automatic mode.
2. Successfully grind part to tolerance specified on blueprint.
3. Demonstrate ability to properly inspect part per quality specifications.
4. Demonstrate ability to adjust machine parameters to bring defective part within specifications.
5. Demonstrate ability to properly shut down machines and cleanup.