Portland Community College | Portland, Oregon

CUTTING TOOL TECHNOLOGY consists of the following modules:

Cutting Fluids - In this module the student will be introduced to why Cutting Fluids are essential in metal cutting operations to reduce the heat and friction created by the plastic deformation of metal and the chip sliding along the chip-tool interface.

Cutting Tools - In this module the student will be introduced to why one of the most important components in the machining process is the cutting tool, the performance of which will determine the efficiency of the operation. The student will learn the importance of selecting the proper cutting tool material and cutting tool angles required to machine a workpiece.

Operating Conditions & Tool Life - In this module the student will be introduced to why the optimization of the operating conditions of the cutting tool effect the quality, accuracy, efficiency and productivity of the workpiece produced.

Carbide Cutting Tools - In this module the student will be introduced to why Cemented Carbide tools have good wear resistance and can operate efficiently at cutting speeds ranging from 150 to 1200 SFM (46 to 366 m/min).

Diamond, Ceramic, and Cermet Cutting Tools - In this module the student will be introduced to the advantages, limitations, and applications of Diamond, Ceramic and Cermet cutting tools.

Polycrystalline Cutting Tools - In this module the student will be introduced to how Polycrystalline, Polycrystalline Diamond (PCD) and Polycrystalline Cubic Boron Nitride (PCBN) cutting tools are manufactured. The student will study why these cutting tools possess increased abrasive resistance, wear resistance, thermal conductivity, and compressive strength, and how these properties ultimately increase machining productivity.  

PREREQUISITE SKILLS AND KNOWLEDGE:
MCH100  

The student will be able to understand and demonstrate the proper setups, uses and operations associated with industry standard types of cutting tools.

This course is based on performance outcomes. The following performance outcomes are based upon established industry standards. The student will demonstrate knowledge and understanding by completing the following activities:

• The student will state the importance and function of cutting fluids; Identify three types of cutting fluids and state the purpose of each; Apply cutting fluids efficiently for a variety of machining operations.
• The student will name the nomenclature of a cutting tool point; Explain the purpose of each type of rake and clearance angle; Identify the applications of various types of cutting tool materials; Describe the cutting action of different types of machines.
•  The student will Describe the effect of cutting conditions on cutting tool life; Explain the effect of cutting conditions on metal removal rates (MRR); State the advantages of new cutting tool materials; Calculate the economic performance and cost analysis for a machining operation.
• The student will Identify and state the purpose of the two main types of carbide grades; Select the proper grade of carbide for various workpiece materials; Select the proper speeds and feeds for carbide tools.
• The student will explain the purpose and application of diamond cutting tools; state the two types of ceramic cutting tools; describe the types and applications of Cermet cutting tools.
• The student will explain the; Manufacturer and properties of polycrystalline tools; Select the proper type and size of polycrystalline cutting tools; and Setup a tool and machine for cutting with polycrystalline tools.

CUTTING TOOL TECHNOLOGY will be presented by means of audio- visual presentations, demonstrations, lab experiences, and research activities. The course activities and design emphasize the development of skills and knowledge outcomes prescribed by established industry standards. The identified outcomes will be achieved by means of individual and team activities.  

POLICY - Student performance measurements are based on established industry standards. The various areas of study during the course will be evaluated by a variety of activities. Typical of those activities are the following;

1. READING ASSIGNMENTS - Information sheets, textbooks, journal articles and the learning resource center are potential sources of information that the student will reference as directed in the modules identified in the introduction. 

2. PRACTICE - Completion of tasks and projects identified in the reading assignments, information sheets, journal articles and textbooks. Students are required to complete practice activities with 100% competency.

3. SELF-ASSESSMENT - Checking and evaluating the students understanding and knowledge gained through the reading assignments and practices typically done through a practice evaluation.

4. LAB ACTIVITIES - Participation in structured laboratory exercises with the emphasis on developing skills or increasing expertise in the areas of study identified in the module packets.

5. FINAL ASSESSMENT - An assessment in the form of a written exam and/or practical application that addresses the subject areas identified in the module packets.  Students are required to complete final assessment activities with 85% competency.

TEXT:

Machinery's Handbook

Blueprint Reading for the Machine Trades by Pouler

Technology of Machine Tools by Krar, Oswald, and St.Amand

Machine Tool Practices, by Kibbe, Neely, Meyer, and White