Composite Manufacturing Method Integrating Extruding and Turning
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Solution Overview
Problem
Conventional composite manufacturing methods for producing metal workpieces, such as turning and cutting processes, are unsuitable for mass production due to excessive processing time and cost, and hot-pressing processes cause material deformation and high costs, making them economically unfeasible for large-scale production.
Innovation Solution
A composite manufacturing method combining extruding and turning processes, where the extruding apparatus is integrated with a lathe to increase the radial and axial lengths of the workpiece, followed by turning, to reduce processing time and cost, and an isolating portion is used to block lathe extruding forces, extending lathe apparatus lifetime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a turning process combined with a cutting process is used to manufacture metal workpieces, then the workpiece can be produced with precise dimensions, but the processing time is too long and the cost is excessive for mass production
Solution Approach 1:
The patent combines the extruding process and turning process into a single integrated composite manufacturing method. The extruding process rapidly forms the basic workpiece geometry, and the turning process subsequently refines the dimensions. This merging of processes maintains manufacturing precision while dramatically reducing total processing time, enabling mass production of metal workpieces.
2Ease of manufacture
If a hot-pressing process combined with a turning process is used to manufacture metal workpieces, then the workpiece can be formed, but very high deformation forces are needed and the material structure is extensively destroyed
Solution Approach 1:
The patent extracts and eliminates the hot-pressing process from the manufacturing sequence, using only the extruding process for workpiece formation. The extruding process forms the workpiece with much lower deformation forces that do not destroy the material structure, while still achieving the desired geometry. This extraction of the problematic hot-pressing step preserves material integrity.
3Ease of manufacture
If a hot-pressing process combined with a turning process is used to manufacture metal workpieces, then the workpiece can be formed, but an external heat source is required making the cost too high for mass production
Solution Approach 1:
The patent removes the hot-pressing process and its associated external heat source from the manufacturing system. The extruding process alone is sufficient to form the workpiece without requiring external heating, thereby eliminating the high energy costs and making the process economically viable for mass production while maintaining ease of manufacture.
4Productivity
If the extruding apparatus is integrated with the lathe apparatus, then the processing time is reduced for mass production, but the lathe apparatus must withstand extruding forces that could reduce its lifetime
Solution Approach 1:
The patent segments the force transmission path by introducing an isolating portion that separates the extruding forces from the lathe apparatus structure. The isolating portion blocks or redirects the high extruding forces, preventing them from reaching and damaging the lathe apparatus components. This segmentation allows the integrated system to maintain both high productivity and apparatus reliability.
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 method significantly reduces processing time and manufacturing costs while maintaining material integrity, making it suitable for mass production by integrating extruding and turning processes with a lathe apparatus and using an isolating portion to manage extruding forces.
Implementation Method 1
an extruding step for extruding a processing end portion of a workpiece by an extruding apparatus so as to increase a radial length and an axial length of the workpiece
Data Source
AI summary
A composite manufacturing method with extruding and turning process for extruding and turning a workpiece includes a clamping step, an isolating step, an extruding step and a turning step. The composite manufacturing method is used for manufacturing a surgical instrument. The clamping step is for positioning a clamping portion of the workpiece by a lathe chuck of the lathe apparatus. The isolating step is for blocking a lathe extruding force via an isolating portion of an extruding apparatus. The extruding step is for extruding a processing end portion of the workpiece by the extruding apparatus and generating the lathe extruding force transmitted toward a clamping portion of the workpiece. The turning step is for turning the processing end portion of the extruded workpiece by a lathe apparatus. The extruding apparatus is disposed on the lathe apparatus.