Draft:Thin wall machining
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Thin-wall machining usually refers to parts whose wall thickness to axial or radial dimension ratio is greater than 1/10 or whose wall thickness is usually less than 2 mm during metal cutting (generally milling or turning).
Due to the high removal rate of thin-walled parts processing, molding the workpiece stiffness is reduced, in the cutting process by the cutting force of the workpiece is prone to large machining deformation, the deformation in the walking tool will occur after the elastic recovery, and then the phenomenon of the walking tool, so that the actual cutting width is not equal to the nominal value, resulting in a reduction in machining accuracy, and even processing quality is challenging to ensure.[1]
In the aerospace industry, it is common to manufacture structures as monolithic parts. At the same time, thin-walled sections are becoming more widespread due to weight requirements, environmental concerns, and the need for greater efficiency. These thin-walled sections are easily found in airplane wings, fuselages, and engines. The machining of these parts is one of the most complex manufacturing processes in the aerospace industry due to their low stiffness.[2]
Which factors of deformation?
[edit]- Cutting force
- Cutting heat
- Clamping
- Residual stress
- Tool path
How to control deformation?
[edit]- Optimize the clamping
- Optimize machining parameters
- Optimize tool path
References
[edit]- ^ Irene Del Sol, Asuncion Rivero, Luis Norberto López de Lacalle, Antonio Juan Gamez. "Thin-Wall Machining of Light Alloys: A Review of Models and Industrial Approaches". National Library of Medicine.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Eksioglu, Muhittin Caner (2011). "Mechanics and dynamics of thin wall machining". University of British Columbia.