Portland Community College | Portland, Oregon

Horizontal Milling Machines & Operations consists of the following modules:

Horizontal Milling / Saw This module introduces the student to set-up the horizontal milling machine and saw a slot in a piece of steel.

Indexing Head / Keyways This module introduces the student to use the indexing head to cut keyways and keyseats with a horizontal milling machine.

Dividing Head / Gang Milling This module introduces the student to use the Dividing Head to gang mill hex and "T" nuts.

Jigs and Fixtures This module introduces the student to the basic function for which a jig or fixture is designed: different styles & shapes to hold the work piece in a rigid, stationary position, and to retain the cutting tool alignment during the actual process of material removal.  

PREREQUISITE SKILLS AND KNOWLEDGE:  
MCH 125  

The student will be able to understand and demonstrate the proper setups, uses and operations associated with the horizontal milling machine and its accessory devices.  

MCH 215 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.  

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 learn text-book set-ups for the horizontal milling machine slot sawing.

• The student will learn text-book set-ups for cutting keyways and keyseats.

• Given a .001 test indicator, the Dividing Head and other tools, the student will gang mill hex and "T" nuts to print specifications.
• The student will learn to identify and determine the use of several types of jigs and fixtures.

OUTCOME ASSESSMENT STRATEGIES:  

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

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

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