Preheating Tools Before Machining to Eliminate Thermal Drift and Improve Accuracy

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a method and machine tool for machining workpieces in which the tool is preheated before use. The preheating step aims to minimize or eliminate unstable temperature fluctuations in the tool during cutting, which can lead to improved machining accuracy. The system allows for any resulting consistent contour shifts of the tool to be tracked and compensated for automatically within the machine's control system, ensuring high-precision results.

Use CasesContent extracted from patent full text and abstract with AI.

• Precision machining of metal parts in automotive, aerospace, or medical industries
• Production environments requiring high dimensional accuracy and repeatability
• Machining processes where temperature-induced tool deformation could impact quality
• Automated manufacturing systems integrating advanced process control for tool compensation

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces machining errors due to temperature changes in the tool
• Enables consistent, high-precision manufacturing
• Allows automatic compensation for predictable tool contour changes
• Improves quality and repeatability of produced parts
• Minimizes downtime related to tool recalibration or manual corrections

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Inventors & Applicants

Patent Abstract

The invention relates to a method for machining a workpiece using a tool and a machine tool that can be used for such a method. In a method according to the invention, the tool is preheated in order to reduce or eliminate transient thermal behavior of the tool occurring during the subsequent machining of the workpiece. In this way, a displacement of the tool contour that is quantifiable relative to the nominal contour and not time-dependent can be realized throughout the process. Such a displacement can be recorded in a machine control as a constant offset correction, and machining inaccuracies resulting therefrom can thus be completely corrected.