Cylindrical Workpiece Cutting Apparatus Sputter Management
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Solution Overview
Problem
Existing cylindrical workpiece cutting apparatuses face issues with sputters attaching to annular recesses of the holder, interfering with the smooth enlargement/reduction of the workpiece holder diameter and causing dross formation, which can lead to damage and operational impediments.
Innovation Solution
The apparatus incorporates a sheet made of materials like Teflon to block sputters from entering the slits and annular recesses, and a dust collection system with a reflection part to direct sputters away from the cutting area, ensuring they are collected without interfering with the holder's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If cooling medium is supplied or suction is made by suction nozzle, then dross generation is suppressed and sputters are collected, but sputters still attach to annular recesses of holder causing interference
Solution Approach 1:
The harmful sputters are extracted from the system by introducing compressed air to blow them away from the annular recesses of the holder. The compressed air flows through nozzles positioned near the holder, creating a protective airflow that prevents sputter accumulation in the annular recesses, thereby maintaining holder operation smoothness while still allowing dross suppression and sputter collection to occur.
Solution Approach 2:
Compressed air is introduced as an intermediary substance between the laser cutting process and the holder. This intermediary airflow acts as a protective barrier that prevents sputters from directly contacting and attaching to the annular recesses of the holder, resolving the contradiction between sputter collection effectiveness and holder operational reliability.
2Reliability
If sheet material like Teflon is used to block sputters, then sputter attachment to holder is prevented, but device complexity increases
Solution Approach 1:
A sheet made of Teflon or similar material is positioned to cover the annular recesses of the holder. This thin film acts as a flexible barrier that prevents sputters from penetrating into and attaching to the recesses, while allowing the holder to maintain its structural integrity and operational smoothness without requiring complex mechanical modifications.
Solution Approach 2:
The Teflon sheet is a simple, inexpensive component that can be easily replaced if needed. Rather than designing a complex permanent protective structure, the patent uses a simple disposable-like element that provides effective protection against sputter attachment while minimizing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively prevents sputter attachment to the holder, reduces dross formation, and maintains the smooth operation of the workpiece holder's diameter adjustment, enhancing the cutting process by ensuring clean and efficient metal ring production.
Implementation Method 1
The apparatus incorporates a sheet made of materials like Teflon to block sputters from entering the slits and annular recesses
Implementation Method 2
a dust collection system with a reflection part to direct sputters away from the cutting area
Implementation Method 3
the metal configuring the workpiece is melted by the laser beam
Implementation Method 4
the metal configuring the workpiece is melted by the laser beam
Implementation Method 5
a passage for cooling medium is formed in a sidewall of a holding member that holds and rotates the cylindrical workpiece and the cooling medium is enabled to flow in the passage and to thus cool the workpiece
Data Source
AI summary
A cylindrical workpiece cutting apparatus is provided with a holder in which a metal made cylindrical workpiece is mounted on an outer periphery of the holder and which is adapted to hold the workpiece over an entire length of the workpiece; annular recesses formed on the outer periphery of the holder at a predetermined interval; a laser outputting part provided at a position opposed to the holder and adapted to output laser beam to the workpiece; and a cover portion provided on surfaces of the annular recesses and adapted to prevent attachment of metal particles which are scattered during cutting the workpiece by the laser beam.