Designing of Injection Mould
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Follow on Instagram for UpdatesDesigning of Injection Mould Syllabus — Unit-wise Content
The official GTU curriculum for Designing of Injection Mould (subject code DI04023021) as prescribed for AI & ML · Semester 4 divides the course into 5 units, covering 28 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI04023021)Unit 1 Injection Mold Materials
- 1.1. Introduction of Injection Mould and its products
- 1.2. Mold material selection criteria
- 1.3. Mould Material Selection Requirements with respect to : Product Design Mould Design Mould Making Moulding
- 1.4. Types of Mould Materials : Plain Carbon Steels- Low Carbon Steel, Medium Carbon Steel, High Carbon Steel Alloy steels Stainless steel Prehardened Steel Carburizing tool steels Oil and air hardening tool steels
Unit 2 General Mould Design Considerations
- 2.1. Injection machine requirements with respect to mould : Clamping side requirements : Clamping methods- Direct bolting and clamping, Clamping force, Tie- bar distance, Opening stroke, Maximum and minimum mold height Injection side requirements: Plasticizing capacity, Shot Capacity, Injection Pressure
- 2.2. Design considerations for Injection molds: Preliminary mold design Detailed mold design
- 2.3. Number of impressions considerations
- 2.4. Gate balancing and runner balancing for balanced impression layout
- 2.5. Shrinkage Calculation – Linear and Volumetric Shrinkage
- 2.6. Venting- Significance and methods of venting
- 2.7. Taper Location Recess: Taper location in Core Plate Taper location in Cavity Plate Comparison of Taper location in Core and Cavity Plate
- 13. 30 (21 Marks) GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Plastics Engineering Subject Code: DI04023021 Course / Subject Name: Designing of Injection Mould w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 3 of 6
- 2.8. Limits, Fits & Tolerances For Mould Parts
- 2.9. Mould Cost Estimation process steps
- 2.10. Mould Assembling Procedure steps
- 2.11. Mould Designer’s Check list points with respect to mold, product and injection machine
- 2.12. Mould Maintenance
Unit 3 Two Plate and Three Plate Injection Moulds
- 3.1. Two-Plate Mould: Introduction of Two Plate Injection Mould Construction and working of Two Plate Mould – Single impression mold, multi- impression mold
- 3.2. Three-Plate Mould: Introduction Construction and Working: Stripper Plate Mould, Double Daylight Underfeed Mould, Double Daylight Underfeed-Stripper Plate Mould Types and working of Opening Control Devices Types of Runner Ejection Techniques
- 3.3. Comparison of Two Plate Mould with Three Plate Mould
Unit 4 Split Molds
- 4.1. Significance of Split Mould Design
- 4.2. Undercut Product Examples Requiring Split Molds
- 4.3. Sliding Splits & Guiding Plate Designs
- 4.4. Constructional Details of Split Mould : Split Actuation Methods Split Locking Methods Split Safety Arrangements
Unit 5 Specialized Molds
- 5.1. Moulds For Threaded Components Introduction Methods for Internally Threaded Components: Fixed Threaded Core Design, Stripping Method, Loose Threaded Core and Unscrewing Method Methods for Externally Threaded Components: Fixed Threaded Cavity Design, Automatic Unscrewing, Stripping Method and Threaded Splits
- 5.2. Hot Runner Moulds Introduction Internally Heated Hot Runner Systems Externally Heated Hot Runner Systems 09 20 (14 Marks) GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Plastics Engineering Subject Code: DI04023021 Course / Subject Name: Designing of Injection Mould w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 4 of 6 Insulated Hot Runner Molding System Advantages and Disadvantages
- 5.3. Introduction of Stack Moulds
- 5.4. Introduction of Interchangeable Insert Moulds Total 45 100 (70 Marks)
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