A dedicated CAD/CAM module for high-precision CNC milling of complex threads

This paper introduces a dedicated CAD/CAM module specifically designed for high-precision CNC milling of complex threads with variable radius and/or pitch and selectable number of turns. The module comprises two interconnected components: a CAD unit and a CAM unit. The CAD unit provides visual repre...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology Vol. 140; no. 3-4; pp. 2195 - 2210
Main Authors: Omirou, Sotiris, Charalambides, Marios, Lontos, Antonis, Menicou, Michalis, Demosthenous, George
Format: Journal Article
Language:English
Published: London Springer London 01.09.2025
Springer Nature B.V
Subjects:
Accuracy
Algorithms
CAD
CAD/CAM
CAE) and Design
Computer aided design
Computer-Aided Engineering (CAD
Cutting tools
Design
Efficiency
Engineering
Flexibility
Fourier transforms
Geometry
Industrial and Production Engineering
Interpolation
Manufacturing
Mechanical Engineering
Media Management
Milling machines
Modules
Numerical controls
Original Article
Simulation
Helix
CNC machining
Interpolation algorithms
Motion generation
CAD/CAM
ISSN:0268-3768, 1433-3015
Online Access:Get full text
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Summary:This paper introduces a dedicated CAD/CAM module specifically designed for high-precision CNC milling of complex threads with variable radius and/or pitch and selectable number of turns. The module comprises two interconnected components: a CAD unit and a CAM unit. The CAD unit provides visual representation by enabling efficient rendering of the target helix. The CAM unit integrates a high-precision CNC interpolation algorithm capable of generating tool paths with deviation no greater than the CNC machine’s step resolution—achieving machining precision limited only by the physical hardware. This innovative CAD/CAM module significantly enhances the motion capabilities of CNC milling machines, offering a powerful programming solution for applications requiring precise control over complex thread geometries. Unlike standard CNC controllers, which are typically restricted to fixed-radius and fixed-pitch helical interpolation, the proposed method enables dynamic adjustments to both parameters. This flexibility greatly expands its potential applications. The module's performance, reliability, and high machining accuracy are thoroughly validated through simulation tests and a real machining trial conducted on a modern CNC milling machine.
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ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-025-16449-z