City University of Hong Kong Information on a Course offered by

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City University of Hong Kong Information on a Course offered by Department of Mechanical and Biomedical Engineering with effect from Summer Term 2014

Part I Course Title: Mold and Die Design Course Code: MBE4001 Course Duration: One Semester No. of Credit Units: 3 Level: B4 Medium of Instruction: English Prerequisites*: MEEM2003 (offered until Semester A 2011/12) / MBE2003 Mechanics / MBE2040 Basic Mechanical Engineering Principles and MEEM2016 (offered until Semester A 2011/12) / MBE2016 Engineering Graphics and MEEM2034 (offered until Semester A 2011/12) / MBE2034 Engineering Materials and Processing or equivalent Precursors: MEEM3006 (offered until Semester A 2011/12) / MBE3006 Plastics Engineering and MEEM3007 (offered until Semester A 2011/12) / MBE3007 CAD/CAM and MEEM3050 (offered until Semester A 2011/12) / MBE3050 Design for Manufacturing and Manufacturing Systems or equivalent Equivalent Courses: MEEM4001 Tool Design Exclusive Courses: Nil *Prerequisites which are not part of the Major Requirement are waived for students admitted into Advanced Standings.

Note: Students may repeat a course, or an equivalent course, to improve course grade only if the previous course grade obtained is D or below.

Part II 1.

Course Aims: Mould and die making is one of the most important linkage industries of the plastics and metals industry which support the consumer products manufacturing. The aims of this course are to introduce to the students the basic concepts of tool design and develop their technical abilities to supervise a modern tool design office. Upon successfully completing this course, the students would gain an in-depth understanding of the principles and acquire basic technical skills concerning (i) design of moulds and press tools and dies for plastic and metal products in the watch, toy and electronic product manufacturing sectors; and (ii) the design of jig and fixture for manufacturing processes.

2.

Course Intended Learning Outcomes (CILOs) Upon successful completion of this course, students should be able to: No. CILOs 1. 2. 3.

4.

Weighting* (if applicable)

List and use the general principles involved in mold and die design Demonstrate the application of the relevant principles concerning the design of jig and fixture for manufacturing processes Apply the principles of mould design to the design of moulds for plastic products in the watch, toy and electronic product manufacturing sectors Apply the principles of press tool and die design to the design of press tools and dies for metal products in the watch, toy and electronic product manufacturing sectors

1 2 3

3

*Weighting ranging from 1,2,3 to indicate the relative level of importance in an ascending order.

3.

Teaching and Learning Activities (TLAs) Activity Type Lecture/Tutorial/Laboratory Mix

ILO No CILO 1 CILO 2 CILO 3 CILO 4 Total (hrs)

Timetabled Activity (Hours per week) Lecture (2.5 hrs); Consultation hours ([email protected]); Laboratory (3 hrs for 2 weeks)

Large Class Activities 3 5 12 12 32

Laboratory Work 1 5 6

Total Hours 4 5 17 12 38

Note: @1 hour per week will be scheduled as “consultation hour” for clearing doubts of students who can meet the teaching staff on an individual or small group basis in his/her office. When the class size exceeds 50 students, an additional consultation hour will be provided and the students will be divided into two groups.

4.

Assessment Tasks/Activities (ATs) Assessment

Laboratory reports

Assignment(s)

Test

Examination (2.5 hours)

Total (%)

2 8 10

2 3 5 5 15

2 3 5 5 15

5 15 20 20 60

11 21 38 30 100

Tasks ILOs

CILO 1 CILO 2 CILO 3 CILO 4 Total (%)

For a student to pass the course, at least 30% of the maximum mark for the examination should be obtained.

5.

Grading of Student Achievement: Laboratory reports, assignments, test and examination will be numerically-marked and grades awarded accordingly. Grade Table Letter Grade

Grade Point

Grade Definitions

A+ A A-

4.3 4.0 3.7

Excellent

B+ B B-

3.3 3.0 2.7

Good

C+ C C-

2.3 2.0 1.7

Adequate

D

1.0

Marginal

F

0.0

Failure

P

-

Pass

Please refer to the ARRO’s website for details.

Part III Keyword Syllabus: z z z z

Injection Moulds for Thermoplastics: Design concepts, basic elements, materials and standard components. Runnerless moulds. Melt flow analysis. Moulds for RIM and Thermosets Injection: Design concepts, basic elements, materials and standard components. Jig and Fixture Design: Design concepts. Principles of location, clamping and tool guidance. Indexing mechanisms. Press Tools and Dies: Design principles for blanking, piercing, bending, forming and deep drawing. Tool materials. Standard die-sets. Inverted dies, compound dies, combination dies and progressive dies.

Recommended Reading: R.G.W. Pye, ‘Injection Mould Design’ Edward Miller, ‘Plastic Product Design Handbook, Part A and Part B’, Dekker ASTME, ‘Plastic Tooling and Manufacturing Handbook’ J.B. Dym., ‘Injection Moulds and Moulding’ Frank W. Wilson, ‘Die Design Handbook’, SME Edward G.H. Hoffman,’Fundamentals of Tool Design’, SME J.R. Paquin, ‘Die Design Fundamentals’ John A. Waller, ‘Press Tools and Press Work’, Potcullus Press D. Eugene Ostegaard, ‘Advanced Die Making’, McGraw-Hill

Online Resources: Online learning material is provided via University computer network.

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City University of Hong Kong Information on a Course offered by

City University of Hong Kong Information on a Course offered by Department of Mechanical and Biomedical Engineering with effect from Summer Term 2014 ...

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