Cases

DFM for Plastic Injection Molding: 7 Design Rules to Avoid Costly Mold Issues

DFM (Design for Manufacturability) for plastic injection molding is the practice of reviewing a part's design before mold cutting begins to eliminate manufacturing risks such as sink marks, warpage, short shots, weld lines, and stuck parts. Applied correctly, DFM reduces mold cost, shortens time to ...

2026-08-27

Which Injection Mold Steel Should You Use for Each Plastic Material? A Complete Matching Standard

Direct answer: There is no single "best" mold steel. For neutral plastics (ABS, PP, PE, PS, HIPS) choose by production volume — P20 below 100,000 shots, 718H/NAK80 for medium batches. Corrosive plastics (PVC, POM, flame-retardant) require S136 stainless steel (48–52 HRC). Glass-fiber reinforced PA...

2026-08-19

7 Metal Surface Treatment Processes Explained: A Guide for OEM Buyers

Metal surface treatment processes determine how a part performs in service — its corrosion resistance, wear resistance, electrical conductivity, and appearance can change by an order of magnitude depending on the finish applied. For OEM buyers and design engineers, choosing the right process is not ...

2026-08-03

Metal Stamping Fundamentals: A Complete Technical Guide to Stamping Dies and Processes

Metal stamping is a cold-forming manufacturing process that uses dies installed in presses to cut or shape sheet metal into finished parts at room temperature — without heating the material to a molten state. It is one of the most widely used metal fabrication methods in automotive, appliance, and ...

2026-07-17

Injection Molding Design Optimization Eliminates Defects: A Case Study in Collaborative Quality Improvement

Client Challenge: Protecting Product Integrity During High-Volume Production In the competitive appliance industry, even minor cosmetic imperfections can lead to customer dissatisfaction and quality concerns. When a key client launched their high-volume Series freezer drawer—a critical component for ...

2026-03-19

How We Ensure Consistent Quality in OEM Injection Molding Plastic Parts

For OEM partners, consistency is everything. A single delay or a batch of non-conforming parts can disrupt your entire production line. At Ocean Century, we build reliability into our process, not just inspect for it afterward. This case outlines the systematic, cross-functional approach we take to ...

2026-01-15

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