3D Shaping Control System for Raised Sintered Portion Cutting
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Solution Overview
Problem
Existing three-dimensional shaping methods face challenges in efficiently and reliably detecting raised sintered portions formed during the sintering process, particularly when the cross-sectional area, mean diameter, shaping width, or undercut angle is less than a predetermined extent, leading to collisions with the powder supplying blade and deformation of sintered regions.
Innovation Solution
A method involving a control system that stores and determines coordinate positions for regions with predetermined dimensions, using a rotating cutting tool to cut raised sintered portions entirely or partially before forming the next powder layer, ensuring the powder supplying blade can travel without issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cross-sectional area or mean diameter of a sintered region is equal to or less than a predetermined extent, then the three-dimensional shaping method can produce various types of shapes, but raised sintered portions are formed at the upper side from the powder layer region, causing collisions with the powder supplying blade
Solution Approach 1:
The control system identifies regions where raised sintered portions are likely to form based on predetermined criteria (cross-sectional area, mean diameter, shaping width, undercut angle) before the powder supplying blade reaches those positions. A rotating cutting tool is activated in advance to cut these raised portions, preventing collisions and ensuring reliable continuous operation while maintaining shape adaptability
2Reliability
If conventional methods are used to detect and cut raised sintered portions, then the blade can avoid collisions, but a great amount of time and complicated know-how are necessary, and no objective standard can be obtained
Solution Approach 1:
The control system continuously monitors sintering process parameters and automatically identifies regions where raised portions form based on objective criteria (cross-sectional area, mean diameter, shaping width, undercut angle). This automated feedback mechanism eliminates the need for time-consuming manual detection and subjective know-how, enabling rapid response and continuous operation
Solution Approach 2:
The system replaces manual mechanical detection and cutting operations with an automated control system that uses predetermined objective criteria to identify and mark regions requiring cutting. This substitution eliminates the time loss and subjectivity associated with conventional methods
3Manufacturing precision
If the shaping width is equal to or less than a predetermined extent, then fine detailed shapes can be produced, but raised sintered portions collide with the powder supplying blade, causing deformation of sintered regions
Solution Approach 1:
The control system identifies regions with small shaping widths before the powder supplying blade reaches them and activates the rotating cutting tool to cut raised portions in advance. This preliminary action prevents blade collisions and deformation while maintaining the ability to produce fine detailed shapes
4Adaptability or versatility
If the undercut angle is equal to or less than a predetermined extent, then complex geometric shapes can be formed, but raised sintered portions are formed that collide with the powder supplying blade
Solution Approach 1:
The control system monitors sintering parameters and automatically identifies regions with small undercut angles that are prone to forming raised portions. The system activates the cutting tool in response to this feedback, preventing blade collisions and ensuring continuous reliable operation while maintaining geometric shape capability
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 approach effectively prevents collisions and ensures efficient three-dimensional shaping by pre-emptively cutting raised sintered portions, allowing for smooth powder layer formation and expanding the method's applicability to various shapes and dimensions.
Implementation Method 1
a step for sintering the powder layer by an optical beam is performed
Implementation Method 2
sintering for a position at which a processed article is expected to be formed by scanning with the use of an optical beam
Implementation Method 3
a rotating cutting tool travels around the region at the coordinate positions in the horizontal direction and an outer peripheral vicinity thereof, thereby, in the case of raised sintered portions forming on the upper side of the region at the coordinate positions, the rotating cutting tool cuts the raised sintered portions entirely or partially
Data Source
AI summary
A three-dimensional shaping method in which the powder supplying blade 2 is able to travel without any problems, in which a control system stores in advance a fine sintered region 11 so that any one of a cross-sectional area or a mean diameter in the horizontal direction, a shaping width and an undercut angle at the end is equal to or less than a predetermined extent, or the control system makes a determination in a sintering step, for said each element, so in the case of the raised sintered portions 12 forming on the upper side of the sintered region 11, a rotating cutting tool 3 cuts the raised sintered portions 12 entirely or partially, thereby achieving the object.