A Comprehensive Guide to Plastic Design

author: Universe plastic

2024-01-17

The design of plastic parts is a complex process involving plastic material knowledge, digital 3D design, prototype production, etc. It requires comprehensive consideration of multiple factors and requires a professional plastic design team to complete.

Structure

1. Product structure: It is necessary to conduct mechanical analysis on the product's structural design, predict stress distribution and deformation, and ensure stability and durability during use.

2. Product wall thickness: During the design process, the wall thickness should be kept as uniform as possible to avoid uneven product thickness caused by inconsistent plastic shrinkage and stress concentration.

3. Reinforcing ribs and ribs: Use reinforcing ribs and ribs to improve structural strength and rigidity and avoid excessive increase in wall thickness.

Material

When designing materials for plastic parts, we should start from the specific use requirements of the product, such as mechanical properties, shrinkage, thermal properties, electrical conductivity, chemical properties, processability, etc. By referring to the Injection Molding Material Names and Application Guide, a list of suitable materials will be determined after comprehensive analysis. Pay attention to the following factors:

1. Whether the materials comply with policy regulations and environmental protection requirements, and sustainable production and environmental protection must be adhered to.

2. Whether the appearance and texture of the material can meet the needs of plastic parts.

3. Whether the colorability of the material can meet the requirements of plastic parts.

4. Whether the cost of materials is more competitive in the market.

5. Whether the shrinkage rate of the material can meet the standard to avoid affecting the size of the finished product.

Feature

1. Connection method: Design an appropriate connection method, such as threaded connection, snap connection, welding, etc., and select according to the product usage environment and strength requirements.

2. Inserts and inserts: Inserts and inserts are designed where needed, such as metal inserts, to enhance connection strength or achieve special functions.

3. Ventilation and heat dissipation: Design structures that require ventilation and heat dissipation to ensure good air circulation and heat dissipation.

Aesthetics and appearance

1. Surface treatment: Design surface treatment processes, such as spraying, printing, electroplating, etc., to improve the aesthetics and texture of the product.

2. Color and texture: Choose the appropriate color and texture to meet the appearance requirements of the product.

Additional considerations when making molds

1. Parting surface design: Consider a reasonable parting surface when designing the mold to ensure that the product can be demoulded smoothly and reduce the complexity of the mold.

2. Gates and runners: Consider reasonable gates and runners when designing the mold to ensure that the plastic material can fill the mold cavity smoothly during the injection molding process and reduce molding defects.

3. Temperature system: Consider the temperature system in mold design to improve production efficiency and product quality.

4. Chamfers and fillets: Use chamfers and fillets at design corners to reduce stress concentration and improve the fluidity and demoulding properties of mold manufacturing.

Prototyping

When manufacturing digital image prototypes of designed products through 3D printing, CNC machining, rapid tooling, etc., the following factors should be paid attention to:

1. 3D printing is an additive process with low manufacturing precision and low cost.

2. CNC plastic processing is a material reduction process with high manufacturing precision and high cost.

Batch quality inspection solution

How to detect the quality of plastic products is a very important link in the design process. Especially in mass injection molding production, how to control quality is the key. Pay attention to the following factors:

1. Determine the testing items to ensure compliance with relevant quality standards and customer needs.

2. Determine the detection method, which must comply with the application scenario or environmental conditions.

3. Testing equipment requirements must be able to fully and comprehensively test product quality.

4. In line with testing standards, standards must be formulated based on customer needs and related requirements.

Cost-effective production solutions

After completing the above design work, it is also necessary to conduct an overall manufacturing cost assessment of the plastic parts and issue a standard manufacturing material list and quotation form to provide customers with more transparent plastic design and manufacturing services.

Universe Plastic Factory adheres to honest cooperation and fair-priced operations, and has provided high-quality services to global customers for more than 15 consecutive years. If you have plastic parts design needs, you can contact us at any time.

Plastic parts color custom injection molding

4140 vs 1018 steel injection mold materials