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Knowledge Center

CNC and Mold Manufacturing Knowledge Center

A 30-article technical knowledge hub for mold core machining, mold cavity design, EDM machining, mold steel selection, tolerance control, surface finish, cooling systems and precision mold manufacturing.

CNC Basics Core CNC machine and machining fundamentals
FAQ All FAQ pages are organized under this Knowledge Center
Technical Articles Mold, material, surface finish and former topic guides

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New Site Structure

CNC Basics, FAQ and Technical Articles in one knowledge system.

Technical guides now live under /knowledge/ as part of the Knowledge Center structure.

All Articles

30 CNC SEO articles from the Word document.

Article 01 / 30

What Is Mold Core Machining Process?

Mold core machining is one of the most critical processes in injection mold manufacturing. The mold core defines the internal shape of the final plastic part, which means it directly determines product accuracy, fit, and function. In modern CNC manufacturing, mold core machining requires micron-level precision and stable thermal control.

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Article 02 / 30

What Is Mold Cavity and How It Works?

The mold cavity defines the outer shape of a molded product. Together with the mold core, it forms the complete geometry of the final part.

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Article 03 / 30

Mold Base Design Explained

The mold base is the structural foundation of any mold system.

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Article 04 / 30

Injection Mold Structure Explained

Injection molds are the foundation of modern plastic manufacturing. Every plastic product, from automotive parts to medical devices, is created through a precise mold structure system. Understanding mold structure is essential for engineering accuracy, cost control, and production stability.

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Article 05 / 30

Mold Steel Types Comparison (P20 vs H13 vs S136)

Mold steel selection directly affects durability, precision, and surface quality. Choosing the wrong material leads to premature wear and production failure.

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Article 06 / 30

EDM Machining in Mold Industry Explained

EDM (Electrical Discharge Machining) is a critical process in mold manufacturing used to create complex shapes that CNC cannot achieve.

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Article 07 / 30

CNC Milling vs Grinding in Mold Manufacturing

In mold manufacturing, CNC milling and grinding are two essential processes used to achieve different levels of precision and surface quality. Understanding the difference between them is critical for achieving high-performance mold components.

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Article 08 / 30

Mold Polishing Levels Explained (Ra 0.8 to Ra 0.05)

Surface finishing is one of the most critical factors in mold manufacturing. The polishing level determines product appearance, functionality, and release performance.

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Article 09 / 30

Mold Tolerance Explained (±0.01 mm vs ±0.003 mm)

Tolerance defines the allowable deviation in mold manufacturing. In high-precision industries, tolerance control determines whether a mold is usable or rejected.

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Article 10 / 30

Mold Cooling System Design Basics

The cooling system is one of the most important parts of an injection mold. It directly determines cycle time, product quality, and production efficiency. In modern mold manufacturing, cooling is not just auxiliary design—it is a core performance system.

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Article 11 / 30

Hot Runner System Advantages Explained

Hot runner systems are widely used in modern injection molds to improve efficiency and reduce material waste. They are especially important in high-volume production industries.

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Article 12 / 30

Cold Runner vs Hot Runner Mold Comparison

Cold runner and hot runner systems represent two fundamental injection molding technologies. Each has different cost structures, efficiency levels, and application scenarios.

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Article 13 / 30

Why Multi-Cavity Mold Reduces Cost

Multi-cavity molds are widely used in high-volume manufacturing industries because they significantly reduce per-unit production cost. This is one of the most important cost optimization strategies in injection molding.

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Article 14 / 30

Flow Balance in Injection Mold Explained

Flow balance is one of the most critical engineering challenges in injection mold design. It determines whether all cavities in a mold fill evenly and consistently.

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Article 15 / 30

Mold Thermal Deformation Control

Thermal deformation is one of the biggest challenges in precision mold manufacturing. It occurs when temperature changes cause material expansion or contraction, affecting dimensional accuracy.

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Article 16 / 30

Mold Assembly Precision Requirements

Mold assembly precision determines whether all machined components can work together as a stable system. Even if individual parts are high precision, poor assembly will still cause mold failure.

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Article 17 / 30

Mold Symmetry Importance in Manufacturing

Symmetry is one of the most important design principles in mold manufacturing. It ensures stability, balance, and uniform performance during injection molding.

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Article 18 / 30

Mold Life Cycle and Maintenance Strategy

Mold life cycle management is essential for controlling production cost and ensuring long-term manufacturing stability.

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Article 19 / 30

S136 Steel Properties for Mold Making

S136 stainless steel is widely used in high-end mold manufacturing due to its excellent corrosion resistance, polishing capability, and dimensional stability. It is a preferred material for medical and optical mold applications.

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Article 20 / 30

H13 Heat Treatment Explained

H13 steel is one of the most widely used hot work mold steels. Its performance heavily depends on heat treatment, which determines hardness, toughness, and thermal resistance.

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Article 21 / 30

SKD61 Mold Steel Applications

SKD61 is a hot work tool steel widely used in injection molds and die casting applications due to its excellent thermal fatigue resistance and toughness.

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Article 22 / 30

Why NAK80 Is Used in Optical Mold

NAK80 is a pre-hardened mold steel widely used in optical and high-precision injection molds. It is known for its excellent polishability, dimensional stability, and machining performance.

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Article 23 / 30

Copper Alloy in Mold Cooling Systems

Copper alloys play a critical role in improving mold cooling efficiency. Due to their high thermal conductivity, they are widely used in inserts and heat transfer areas of modern molds.

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Article 24 / 30

CNC Tolerance ±0.003 mm Explained

In high-end mold manufacturing, CNC tolerance defines the precision level of machining. Achieving ±0.003 mm accuracy represents ultra-precision manufacturing capability.

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Article 25 / 30

Surface Finish Ra Meaning in Mold Industry

Surface finish (Ra) is one of the most important quality indicators in mold manufacturing. It directly affects product appearance, demolding performance, and functional stability.

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Article 26 / 30

EV Battery Tray Mold Manufacturing Process

EV battery trays are one of the most critical structural components in electric vehicles. They require high strength, sealing performance, and large-scale precision machining.

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Article 27 / 30

Automotive Interior Mold Design Guide

Automotive interior molds are used to produce dashboards, trims, panels, and decorative components. These parts require both aesthetic quality and functional precision.

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Article 28 / 30

Medical Mold ISO 13485 Requirements Explained

Medical mold manufacturing must comply with strict international quality standards. Among them, ISO 13485 is the most important certification system for medical device production environments.

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Article 29 / 30

Optical Lens Mold Manufacturing Process

Optical lens molds require the highest level of surface precision and material stability. They are used in lenses, light guides, and high-clarity optical components.

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Article 30 / 30

Connector Mold Precision Engineering Guide

Connector molds are essential for producing electronic connectors used in automotive, consumer electronics, and industrial systems. They require extreme precision and high-volume stability.

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