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Types of Cutting that Causes Material Damage in CNC Machining

CNC machine operators often grapple with tool deformation and machining materials damage, posing significant challenges to the machining process. Identifying the factors behind these issues is crucial for effective prevention. Therefore, a thorough inspection of tools becomes paramount.

This article delves into the various cutting problems that contribute to tool deformation and material damage in CNC machines, shedding light on strategies to address and mitigate these challenges.

3 Common Tool Cutting Problems Faced by Machining Material

While CNC machining offers precision through computer control, it isn’t immune to tool-related issues. Among these challenges, irregular cutting of work objects stands out. This article addresses three common tool-cutting problems faced by CNC machine operators and provides insights into mitigating these issues.

1. Hitting Cutters

This problem arises when the cutting tool encounters excessive workpiece material, leading to collisions during the process. High cutting amounts, inappropriate machining methods, and improper safety heights contribute to hitting cutters.

Optimal solutions include selecting a smaller tool diameter, choosing the right machining method based on tool characteristics, and ensuring an appropriate safety height to prevent clamping interference.

2. Bouncing Cutters

Bouncing cutters induce tool deformation and material damage due to vibrations caused by excessive force. Factors like tool diameter and length significantly impact bouncing cutters.

Choosing larger diameter tools over length, selecting shorter tools to avoid deformation, and minimizing cutting forces are effective strategies to counteract bouncing cutters.

3. Overcutting

Overcutting occurs when the tool removes more material than necessary, potentially damaging the workpiece. Vigilance over the tool path and careful attention during cutting are essential to prevent overcutting. Operators should maintain a watchful eye on the tool’s movements to ensure precision and avoid unnecessary material removal.

Tips to Avoid Common Tool-Cutting Issues in CNC Machining Material

Below are some practical tips you can consider for avoiding the above-mentioned tool-cutting issues:

Hitting Cutters

  • Opt for smaller tool diameters to reduce cutting amounts.
  • Choose appropriate machining methods aligned with tool characteristics.
  • Ensure proper safety heights to prevent clamping interference.

Bouncing Cutters

  • Select larger diameter tools over length to minimize bouncing.
  • Choose shorter tools to avoid deformation during cutting.
  • Minimize cutting forces to reduce the impact of vibrations.


  • Maintain vigilance over the tool path to prevent overcutting.
  • Exercise careful attention during cutting operations.
  • Constantly monitor the cutting process for precision and material preservation.


In CNC machining, where precision is crucial, operators face challenges like tool deformation and material damage. This article delves into the complexities of cutting problems contributing to these issues in CNC machines, providing valuable insights into prevention and mitigation.

It covers strategies like choosing the right tools and machining methods to handle hitting cutters, considering tool dimensions to tackle bouncing cutters, and staying vigilant over the tool path to avoid overcutting.

With this comprehensive guide, we hope you are now better familiar with how to navigate and overcome these common challenges, ensuring improved efficiency and reliability in CNC machining solutions.

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