3D Printed Mold for Injection Molding

3D printed mold for injection molding are mold cavities, inserts, and even complete simple mold sets created using additive manufacturing processes. They are a supplementary solution to traditional machined molds, emphasizing speed, flexibility, and low cost, suitable for R&D pilot production and small-batch customization scenarios.

1. Core Categories

Resin Molds: Manufactured using SLA, DLP, SLS, etc., commonly using glass fiber reinforced resins such as Rigid 10K. Costs are 90% lower than metal molds, and hundreds to thousands of mold runs can be completed, suitable for small-batch trial production.

Metal Molds: Manufactured using metal powder bed fusion, commonly using maraging steel. The mold runs can reach tens of thousands, and integral molding of conformal cooling water channels is also possible, suitable for medium-batch production.

2. Key Advantages

Extremely Short Cycle Time: Traditional steel molds requires 30-60 days, while 3D printed small to medium-sized molds only requires 3-7 days. Design iterations do not requires re-molding, significantly reducing the new product launch cycle.

High design freedom: It allows for the creation of conformal cooling channels that closely follow the contours of the plastic part, reducing injection molding cooling time by 20%-40%, improving defects such as shrinkage and warping, and enabling one-piece molding of complex irregular cavities.

Low cost for small batches: Material utilization exceeds 90%, with almost no cutting waste. Initial investment is far lower than traditional steel molds, and repairs can be made through additive manufacturing after localized damage, further reducing maintenance costs.

3. Existing limitations:

Limited lifespan: Resin molds can only support a few hundred molding cycles, while metal printing molds have a much lower cycle life than traditional forged steel, reaching millions of cycles, making them unsuitable for long-term, high-volume production.

Insufficient precision and surface texture: Layer-by-layer buildup creates textured surfaces, making it difficult to achieve a mirror finish. It is unsuitable for transparent parts and high-gloss finishes, and the large dimensional tolerances make it difficult to adapt to high-precision micro-parts.

Limited application scenarios: Resin molds are not heat-resistant and cannot process high-temperature engineering plastics such as PEEK. Limited equipment molding space makes it difficult to manufacture large injection molds.

Qingdao Xueyu Molding Products Co., Ltd. is mainly engaged in the design and manufacturing of injection molds, injection molding and secondary processing (spraying, pad printing, ultrasonic welding, stamping), etc. For more information about 3d printed mold for injection molding, please contact us.

Website: www.xyzmould.com

Address: No.18 Henan Head Road, Henan Head Community, Jihongtan Street, Qingdao Industrial Park, Shandong Province, China

Email: wangmiaotian8@163.com