Supplier: DAYIN Plastic Products Co., Ltd.
Contact person: Mr. Elsa Elsa
Position: china
Address: NO.220,ZHENAN WEST RD,CHANGAN TOWN, DONGGUAN CITY,GUANGDONG PROVINCE
Country: China
Phone: 13829104064 - Mobi: 18929159408
Design for Manufacturing Injection Molding
Price: 1
https://www.madeindayin.com/oem-odm-services/design-for-manufacturing-injection-molding.html
Design for Manufacturing Injection Molding
There are many design elements involved when manufacturing plastic parts for injection molding - design for cost, design for quality, design for assembly, design for manufacturability. And navigating these environments can be challenging at times. At DAYIN, we provide automated design analysis of your CAD model, highlighting features in your part design that can be adjusted for moldability. This is a great design resource at your fingertips. To keep these moldability recommendations to a minimum and optimize your part design, we created this helpful kit of different injection molding resources.
Material Selection
Thermosets
Thermosets undergo a chemical reaction when processed. This reaction forms bonds in the polymer chains. The chemical reaction is irreversible and can only occur once, so it is not possible to use recycled materials. However, the trade-off is strength and high temperature resistance. Common types of thermosets are epoxies, silicones, polyurethanes, and phenolics.
Thermoplastics
Thermoplastics soften when heated and are easily injection molded. They do not undergo chemical changes like thermosets. Therefore, they can be reprocessed after the initial manufacturing process. There are two different types of thermoplastics - semi-crystalline and amorphous.
Amorphous
Amorphous plastics have a random, tangled orientation of their polymer chains. They are stronger and better suited for structural applications. While they are strong, they are susceptible to stress fractures. They also do not work as well as semi-crystalline plastics on bearing surfaces. Here are some of the most common types:
ABS
Acrylic
Polycarbonate
PVC
Semi-crystalline
Semi-crystalline plastics have a random, crystalline portion of their structure. In other words, they are a mixture of an amorphous structure and a fully crystalline structure. They make excellent bearing surfaces, living hinges, and offer good chemical resistance. The downside is that they tend to shrink and warp more easily than amorphous plastics. Here are some of the most common types:
Polyoxymethylene
Nylon
Polybutylene terephthalate
High-density polyethylene
Low-density polyethylene
PET
Polypropylene
Semi-crystalline
The above materials are often altered using additives and fillers. In the simplest application, the molder manufacturer can change the color of the material using color additives. The color can be changed on the molding machine or at the material manufacturer. Material manufacturers can make more advanced materials or "engineered materials." For example, a manufacturer can add varying levels of glass fiber to a material such as polycarbonate. The material will still be delivered to the molder in pellet form, but the strength will be significantly increased with the addition of glass fiber. Other fillers such as talc and carbon fiber are also common.
Fillers and additives can change other material properties. These can include UV protectants, antioxidants, antistatic agents, antimicrobial agents, lubricants, and more. Remember that they are application specific. Rather than trying to learn everything about a material, start with what your part needs and focus on that.
Design for Manufacturing Injection Molding
There are many design elements involved when manufacturing plastic parts for injection molding - design for cost, design for quality, design for assembly, design for manufacturability. And navigating these environments can be challenging at times. At DAYIN, we provide automated design analysis of your CAD model, highlighting features in your part design that can be adjusted for moldability. This is a great design resource at your fingertips. To keep these moldability recommendations to a minimum and optimize your part design, we created this helpful kit of different injection molding resources.
Material Selection
Thermosets
Thermosets undergo a chemical reaction when processed. This reaction forms bonds in the polymer chains. The chemical reaction is irreversible and can only occur once, so it is not possible to use recycled materials. However, the trade-off is strength and high temperature resistance. Common types of thermosets are epoxies, silicones, polyurethanes, and phenolics.
Thermoplastics
Thermoplastics soften when heated and are easily injection molded. They do not undergo chemical changes like thermosets. Therefore, they can be reprocessed after the initial manufacturing process. There are two different types of thermoplastics - semi-crystalline and amorphous.
Amorphous
Amorphous plastics have a random, tangled orientation of their polymer chains. They are stronger and better suited for structural applications. While they are strong, they are susceptible to stress fractures. They also do not work as well as semi-crystalline plastics on bearing surfaces. Here are some of the most common types:
ABS
Acrylic
Polycarbonate
PVC
Semi-crystalline
Semi-crystalline plastics have a random, crystalline portion of their structure. In other words, they are a mixture of an amorphous structure and a fully crystalline structure. They make excellent bearing surfaces, living hinges, and offer good chemical resistance. The downside is that they tend to shrink and warp more easily than amorphous plastics. Here are some of the most common types:
Polyoxymethylene
Nylon
Polybutylene terephthalate
High-density polyethylene
Low-density polyethylene
PET
Polypropylene
Semi-crystalline
The above materials are often altered using additives and fillers. In the simplest application, the molder manufacturer can change the color of the material using color additives. The color can be changed on the molding machine or at the material manufacturer. Material manufacturers can make more advanced materials or "engineered materials." For example, a manufacturer can add varying levels of glass fiber to a material such as polycarbonate. The material will still be delivered to the molder in pellet form, but the strength will be significantly increased with the addition of glass fiber. Other fillers such as talc and carbon fiber are also common.
Fillers and additives can change other material properties. These can include UV protectants, antioxidants, antistatic agents, antimicrobial agents, lubricants, and more. Remember that they are application specific. Rather than trying to learn everything about a material, start with what your part needs and focus on that.
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