The Importance of Tool Path Optimization in CAM Software

In the field of CNC machining, CAM (Computer Aided Manufacturing) software is the core bridge between design and finished product, while toolpath optimisation is the key technology to ensure machining efficiency, accuracy and cost control. Whether it's 5-axis complex surface machining or batch part production, inefficient toolpaths can lead to double the machining time, a surge in tool wear and even part scrap. In this article, we will analyse the core logic of tool path optimization, and share how to achieve machining efficiency through intelligent algorithms and strategies to achieve more than 30% of the actual method.

I. Tool path optimisation: from basic definition to industry value

1. What is tool path optimisation?

Definition: By adjusting the tool trajectory, cutting parameters and machining sequence, maximise machining efficiency and extend tool life under the premise of quality assurance.

Core Objective:

Shorten machining cycle time: Reduce empty tool movement and improve material removal rate.

Reduce tool costs: optimise cutting loads and extend tool life.

Improve surface quality: avoid chatter, overcutting and residual burrs.

2. Typical problems of inefficient toolpaths

Excessive empty travel: the tool moves more than 25% of the time in the non-cutting state.

Uneven cutting loads: resulting in tool chipping or workpiece deformation.

Residual material is not removed: secondary processing to increase man-hours and costs.

II. 5 core strategies for tool path optimisation

1. Intelligent roughing strategy

Technology programme:

Pendulum milling: continuous cutting with helical trajectory, reducing the lateral force on the tool (suitable for deep cavity machining).

Dynamic milling: constant cutting thickness, increase feed rate to 3 times of conventional (e.g. F=5000mm/min).

Effect: Roughing time is reduced by 40% and tool life is extended by 20%.

2. Finishing path optimisation

Key technology:

Equal residual height machining: automatically adjust the step spacing according to the curvature of the surface to ensure the consistency of surface roughness (Ra≤0.8μm).

Streamline machining: take the tool along the vector direction of the surface to reduce the vibration of the machine tool.

Case: Automotive mould finishing time reduced from 8 hours to 5 hours.

3. Multi-axis linkage path planning

Application Scenario:

5-axis Side Edge Machining: Using the side edge of the tool to cut complex surfaces, increasing efficiency by 50%.

3+2 positioning machining: Reduce the number of clamping times and improve accuracy by 0.02mm.

Collision avoidance algorithm: real-time simulation of the risk of interference between the tool and fixture.

4. Tool load balancing technology

Data-driven:

Monitoring the cutting force through sensors, dynamically adjusting the feed rate (e.g., automatically reducing the speed by 10% when the load exceeds the limit).

Adaptive cutting parameter library to match different materials (e.g. steel parts vs. titanium alloy).

5. Intelligent identification of residual machining

Solution:

Residual material map (Rest Material) : Automatically identify the area not cleared in the previous process, and target make-up cuts.

Small tool priority strategy: φ2mm tool to clean up the corners, to avoid φ10mm tool idle.

III. CAM software in the tool path optimisation tools

1. Industry-leading CAM software features comparison

2. Optimisation process standardisation

Model analysis: Identify high-risk areas such as thin walls, deep cavities, etc.

Strategy matching: select roughing/finishing strategies based on features.

Parameter Optimisation: Setting the golden ratio of cutting volume, feed and RPM.

Simulation verification: check overcut, collision and machine limit.

IV. JLCCNC: One-stop service provider for tool path optimisation and high-precision machining

JLCCNC deeply integrates CAM technology and practical experience to provide customers with full-process optimisation services from programming to finished products:

Technical Advantage:

Intelligent CAM programming: realises automatic optimisation of complex paths.

Five-axis linkage machining: supports ultra-high precision parts such as impellers and aerospace structural parts.

Real-time monitoring system: dynamically adjusts machining parameters through IoT sensors, extending tool life by 30%.

Service Highlights:

Rapid Sampling: CAM programming and sample delivery of complex parts within 3 days.

Value pricing: cnc machining services as low as $1.

Contact JLCCNC today to experience the efficiency revolution brought by intelligent toolpath optimisation!