What is injection molding accuracy?

Injection molding accuracy refers to the degree to which the plastic parts produced during the injection molding process agree with the design specifications, often also referred to as tolerance requirements, indicating the allowable range of error in the dimensions of an injection molded part. It measures the accuracy and repeatability of part size, shape and tolerances. High injection molding accuracy is critical to producing high quality plastic parts that meet stringent requirements.

Factors affecting injection molding accuracy

• Mold Design: Good or bad design is crucial to the smooth molding production and precision control of the product, and is the beginning of all the work.
• Mold processing accuracy: The accuracy of a mold is critical to ensuring part accuracy. Highly accurate molds produce parts that are accurate in size and shape with tight tolerances.
• Machine precision: The accuracy of an injection molding machine is critical to controlling process parameters such as injection pressure, injection speed and holding time. Highly accurate machines produce consistent parts with narrower tolerance ranges.
• Material Properties: Plastic material properties, such as shrinkage and flow, can affect injection molding accuracy. Using materials with low shrinkage and good flow can help reduce part distortion and dimensional changes, but more often than not, the material has been prioritized.
• Process parameters: Injection molding process parameters, such as injection temperature, mold temperature and injection pressure, affect the size and shape of the part. Optimizing process parameters is critical to obtaining high injection molding accuracy.

Measures to improve injection molding accuracy

• Good mold design and check review.
• Use of high-precision molds and machines.
• Optimize injection molding process parameters.
• Implement quality control measures such as first article inspection and statistical process control.

Important industry for high injection molding accuracy

• motor vehicles: Production of plastic parts with complex shapes and tight tolerances, such as instrument panels and bumpers.
• medical care: The production of precision medical devices and implantable medical devices requires a high degree of accuracy and reliability.
• electronically: Production of electronic components with fine features and complex geometries.
• aerospace: Producing lightweight, high-strength plastic parts that need to meet stringent performance requirements.

In summary, injection molding accuracy is critical to producing high quality plastic parts that meet stringent requirements. Through the use of high-precision molds and machines, selecting the right materials and optimizing process parameters, high precision injection molding can be achieved. Techeng Technology is a professional plastic injection mold manufacturer, provide customized drawings, customized samples, from copying, prototyping, 3D printing, mold design and manufacturing, mold assembly, mold trial, injection production, packaging, to provide one-stop service, welcome to consult.