CNC Machined 7075 Aluminum Linkage Arm for Automation Mechanism

Precision Aluminum CNC Machining for Lightweight Motion Transfer Components

This project involved manufacturing a custom CNC machined 7075 aluminum linkage arm for an industrial automation mechanism.

The component is designed as a motion transfer part, connecting different sections of an automated system through precision pivot points.

Manufactured from 7075 aluminum, the linkage arm combines lightweight design with high mechanical strength, making it suitable for applications where weight reduction and structural rigidity are both important.

Based on customer-provided design requirements, the component was CNC machined with precision bore features and finished with natural anodizing without sand blasting to maintain the machined aluminum appearance.

With an approximate size of 310 × 85 mm, around 60 pieces were produced, inspected, and exported to Israel.

Project Overview

7075 Aluminum CNC Machining for Motion Components

7075 aluminum was selected for this linkage arm because it provides excellent mechanical performance while maintaining a lightweight structure.

Compared with commonly used aluminum alloys, 7075 aluminum offers:

• Higher strength
• Excellent strength-to-weight ratio
• Good fatigue resistance
• Suitable performance for moving mechanical components

For automation mechanisms, linkage components need to withstand repeated movement while maintaining accurate positioning.

The CNC machining process focused on controlling:

• Bore locations
• Overall profile accuracy
• Structural transitions
• Assembly interfaces

Machining Challenges of Aluminum Linkage Arms

Although the part has a relatively simple external shape, linkage arms require careful machining because their performance depends on the relationship between multiple features.

Precision Bore Alignment

The holes at both ends act as pivot connection points.

Their positional accuracy directly affects:

• Motion smoothness
• Assembly alignment
• Repeatability of the mechanism

Long Thin Structure Machining

The elongated design requires attention during CNC machining because thin sections can be affected by:

• Cutting forces
• Clamping pressure
• Material stress

The machining process was planned to maintain the final geometry and avoid unnecessary deformation.

Surface Protection During Finishing

Since the customer required natural anodizing without sand blasting, controlling the machining surface quality was important.

The CNC finish needed to provide:

• Consistent appearance
• Smooth surface condition
• Proper preparation for anodizing

Natural Anodizing for CNC Machined 7075 Aluminum Parts

After machining, the linkage arms received:

Natural Anodizing

This finish provides:

• Improved corrosion resistance
• Additional surface protection
• Better durability for industrial environments

Because no sand blasting was required, the anodizing process preserved the original CNC machined aluminum appearance.

Custom CNC Machining Based on Customer Drawings

This linkage arm was manufactured according to the customer's design requirements.

YS Precision supports custom CNC machining based on:

• 3D CAD models
• 2D engineering drawings
• Material specifications
• Surface finishing requirements

Before production, our engineering team reviews:

• Machining feasibility
• Tool access
• Workholding method
• Critical features

to develop a suitable manufacturing process.

Quality Control for Precision Automation Components

For motion-related components, dimensional consistency is critical because small variations can affect the performance of the complete mechanism.

Inspection includes:

• Material verification
• Critical dimension checking
• Bore measurement
• Surface finish inspection
• Final quality inspection

After anodizing, parts are carefully packaged to protect the finished surfaces during international shipment.

Custom CNC Machining Service for Automation Mechanism Parts

YS Precision provides custom CNC machining solutions for:

• CNC machined linkage arms
• 7075 aluminum mechanical components
• Automation mechanism parts
• Precision motion components
• Custom aluminum CNC parts

Our services include:

• CNC milling
• Aluminum CNC machining
• Precision hole machining
• Surface finishing
• Quality inspection
• Export support

Custom CNC Machined Aluminum Linkage Arms

If you need precision CNC machined 7075 aluminum linkage arms or automation mechanism components, YS Precision can support your project from engineering review through final delivery.

Our process includes:

CAD Review → CNC Machining → Natural Anodizing → Inspection → Shipment