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Precision Injection Mould

Precision Injection Mould

Precision mold is a high-end product in mechanical manufacturing, and its processing accuracy and surface quality are high. Precision mold tolerance refers to the maximum error range between different parts during manufacturing due to manufacturing process and measurement accuracy. Precision mold tolerance has an important influence on the service life, machining accuracy and use effect of the mold.
Dongguan Yixun Industrial Co.,Ltd. has been making a lot of precision plastdic injection moulds, such as gear moulds, auto parts moulds, medical and healthcare precision parts molds etc. 

Precision Mould Workpiece Tolerance

1. Dimensional tolerance requirements: Generally speaking, the dimensional tolerance is required within 5um. Especially high-precision mold, its dimensional tolerance can reach within 1um. In the manufacturing process, high-precision machining equipment and measuring instruments must be used to ensure that the dimensional error of each workpiece is controlled within the tolerance requirements. 
2. Form and position tolerance requirements: Form and position tolerance refers to the tolerance range of error between the position and shape of different parts. The form and position tolerance requirements of precision molds are usually within 0.01mm, and it is necessary to take into account the relationship between different parts and the impact on the workpiece processing. 
3. Surface roughness requirements: Surface roughness refers to the maximum allowable roughness value of the workpiece surface. Precision mold surface roughness requirements are relatively high, generally within Ra0.1um. It is necessary to use high-quality grinding tools and techniques to ensure the finish and flatness of the mold surface.
Precision injection molding parts

How to Control the Precision Plastic Mould ?

Precision injection molding parts

Select Suitable Material

1. hight tough and high hardness 
   mold steel 
2. Good Coefficient of thermal  expansion and thermal stability
of plastic raw material resin. 
Precision injection molding parts

Adopt State to the Art Machinig Technology

1. the precision machines to make the mold ,sugch as mirror EDM, slow speed wirecutting machine, precision moulder. 
 
 
Precision injection molding parts

Strict Quality Control

1. Precision mold design review 
2. every mold workpiece dimension control 
3. injection molding parameters contol .
 
Precision injection molding parts

Strict Inspection

1. CMM inspection machine 
2. mold steel dimension report 
3. production CPK 
 
 
The dimensional accuracy of injection parts mainly depends on several factors, including mold design, material characteristics, injection process parameters and machine accuracy. Under ideal conditions, the dimensional accuracy of injection parts can reach a very high level, but in practical applications, the dimensional tolerance will vary according to the specific situation.
Yixun is the China first generation mold maker, specialize in mold and moulding, provide one-stop plastic manufacturing service, feature in building medical and healthcare device tooling.
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