Mold Design Analysis for Product Optimization

Program Description

This program focuses on analyzing the relationship between product geometry, injection molding behavior, and mold design to achieve better product quality and more efficient manufacturing. Participants examine design features that can create molding difficulties, such as wall thickness variation, draft, undercuts, sharp corners, ribs, bosses, and parting areas. The learning process progresses toward proposing design improvements that support easier mold construction, stable molding conditions, reduced defects, and more economical production.

Method

Interactive technical sessions using product and mold design cases
CAD-based analysis and hands-on evaluation of product geometry
Problem-solving exercises followed by design optimization and technical review

Requirements

Basic understanding of mechanical design and plastic injection molding
Able to interpret engineering drawings and basic product specifications
Familiarity with 3D CAD software is recommended

Target Participants

Mold and product design engineers
Tooling and manufacturing engineers
CAD designers involved in plastic component development
Injection molding process and production personnel
Engineering students or technical graduates preparing for the plastics industry

Learning Output

Participants will be able to evaluate plastic product geometry from a moldability perspective, identify design features that may contribute to molding defects or tooling complexity, assess the interaction between product and mold design, and recommend practical modifications that improve manufacturability, product quality, mold reliability, and production efficiency.

Program Advantages

The training encourages participants to identify potential manufacturing issues before mold fabrication, reducing costly design revisions and tooling modifications. By connecting product engineering decisions with actual injection molding and mold construction requirements, participants can develop more production-ready designs with improved quality, functionality, and manufacturing efficiency.

Subject Materials

1. Product Design for Injection Molding
1. 1 Product geometry, wall thickness, draft angle, ribs, bosses, and corner design
1. 2 Material characteristics and their influence on product design
1. 3 Design features affecting filling, cooling, shrinkage, and deformation
2. Moldability & Design Evaluation
2. 1 Parting line selection and mold opening considerations
2. 2 Identification of undercuts, difficult features, and tooling constraints
2. 3 Assessment of ejection, insert, slide, and lifter requirements
3. Injection Molding Defects & Root-Cause Analysis
3. 1 Common defects such as sink marks, warpage, short shots, and weld lines
3. 2 Relationship between product geometry, mold design, and process conditions
3. 3 Systematic identification of potential design-related causes
4. Product Design Optimization
4. 1 Modification of geometry to improve manufacturability
4. 2 Optimization of wall thickness, ribs, bosses, draft, and transitions
4. 3 Balancing product function, appearance, tooling complexity, and production cost
5. Applied Product & Mold Optimization Project
5. 1 Analysis of an existing plastic product design
5. 2 Development and comparison of improvement alternatives
5. 3 Final design recommendation supported by technical analysis