MN 242 - Applied Injection Molding

Description
This course provides students with knowledge and experience in solving common issues encountered running injection molding production equipment. Students relate machine control parameters to their effect on processes and part quality. Students set-up processes using different molds in injection molding machines and duplicate industrial standards to obtain the highest quality parts with the shortest possible cycle times. Added emphasis is placed on troubleshooting and process optimization.

Credit Hours: 4
Contact Hours: 6
Prerequisites/Other Requirements: None
English Prerequisite(s): None
Math Prerequisite(s): None
Course Corequisite(s): MN 223
Academic Program Prerequisite: None
Consent to Enroll in Course: No Department Consent Required
Dual Enrollment Allowed?: No
Number of Times Course can be taken for credit: 1
Programs Where This Course is a Requirement:
Plastics-Polymer Engineering Technology, A.A.A.S., Plastics-Polymer Engineering Technology, A.A.A.S (Ferris State University-Manufacturing Engineering Technology), Plastics-Polymer Engineering Technology, A.A.A.S (Ferris State University-Plastics Engineering Technology)

General Education Requirement:
None
General Education Learner Outcomes (GELO):
NA
Course Learning Outcomes:

Develop an Injection process to include Fill, Pack, and Hold.
Install a new mold and create a molding process with acceptable quality parts.
Compare and contrast issues developed within a molding process.
Demonstrate the ability to setup peripheral equipment used for controlling injection molding processes.
Create a written summary of the main ideas extracted from information gathered.
Create and/or organize data and information into meaningful patterns in order to interpret and draw inferences from it.

Course Outline:
I. Review injection molding

A. Safety procedures

B. Machine cycle

C. Machine logic

D. Molding problem

II. Mold installation

A. Hydraulic clamp machines

B. Toggle clamp machines

C. Electric clamp machines

III. Machine set-up

A. Shot size

B. Injection speed and pressure

C. Packing and holding

D. Transfer types and settings

1. Position

2. Hydraulic

3. Cavity

4. Time

E. Extrude speeds and back pressure

F. Melt decompression

G. Ejection

H. Mold protect

IV. Mold cavity pressure transducers

V. Common injection molding practices

A. Weld and meld lines

B. Large and small gates

C. Thick and thin parts

D. Gate seal times

E. Medical device clarity standards

F. Dimensional control within tolerances given

G. Stress analyzes to visual standards and optical standards

E. Regrind

F. Optimum cycle times

H. Part weight

VI. Injection velocity to material viscosity relationships

A. Voids and sinks

VII. Peripherals

A. Loader operation

B. Mold temperature controller operation

C. Chiller operation

D. Dryer operation

E. Cavity pressure monitoring

F. Effects of regrind

Approved for Online and Hybrid Delivery?:
No
Instructional Strategies:
Audio-Visual Material: 0-10%

Demonstrations: 10-20%

Instructor’s Lectures: 5-10%

Laboratory Experiments: 60-85%
Mandatory Course Components:
None
Equivalent Courses:
None

Accepted GRCC Advanced Placement (AP) Exam Credit: None
AP Min. Score: NA
Name of Industry Recognize Credentials: NA

Course prepares students to seek the following external certification:
No
Course-Specific Placement Test: None
Course Aligned with ARW/IRW Pairing: N/A

Mandatory Department Assessment Measures:
Common Midterm and Final Exam to be performance based on molding machine.

Labs 1-9 in Lab Packet with additional 9 labs selected by student

Course Type:
Program Requirement- Offering designed to meet the learning needs of students in a specific GRCC program.
Course Format:
Lecture/Lab - Must meet Lecture & Lab Ratios
Total Lecture/Lab Hours Per Week: 6
People Soft Course ID Number: 101548
Course CIP Code: 48.9999
Maximum Course Enrollment: 14
High School Articulation Agreements exist?: No
If yes, with which high schools?: N/A
Non-Credit GRCC Articulation Agreement With What Area: No
Identify the Non Credit Programs this Course is Accepted: NA

School: School of Business & Industry
Department: Manufacturing
Discipline: MN
First Term Valid: Fall 2019 (8/1/2019)
1st Catalog Year: 2019-2020
Faculty Credential Requirements:
Other (list below), Professionally qualified through work experience in field (Perkins Act or Other) (list below)
Faculty Credential Requirement Details:
Bachelor’s Degree in related field with a minimum of 4000 hours of work experience.

Major Course Revisions: N/A
Last Revision Date Effective: 20240301T12:09:13
Course Review & Revision Year: 2028-2029