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Process for molding a 3-dimensional part

A technology for molding parts and processes, applied in general control systems, program control, control/regulation systems, etc., and can solve problems such as fiber damage, deformation loss, etc.

Inactive Publication Date: 2015-09-16
FIVES MACHINING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiber tension leads to possible fiber damage (such as fiber tearing or fiber expansion) caused by fiber stress, and loss of the panel's ability to conform to the final mold shape without undergoing post-molding deformation

Method used

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  • Process for molding a 3-dimensional part
  • Process for molding a 3-dimensional part
  • Process for molding a 3-dimensional part

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] Turning now to the accompanying drawings, figure 1 Apparatus used in the process for forming a ply of composite material indicated generally at 10 is shown. A fiber or tape laying machine 12 may be used to apply composite fibers or tapes 14 to a receiving floor or platform 16 . The composite tape 14 may include unidirectional fibers in a resin matrix, although other combinations of resin and reinforcing fibers may be used. The composite tape 14 may then proceed to a cutting station 18, which may be controlled by panel cutting software 24, where it may be cut into a two-dimensional ply 20 having a shape formed by a peripheral profile 22 that will be required for to form it into the final product. The cutting station is also controlled by predictive modeling software 25 that can be used to identify where and how much fiber compression and / or tension will occur when a two-dimensional ply or panel is molded into a three-dimensional shape . The predictive modeling softwa...

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Abstract

A process uses predictive modeling software for selectively applying relief cuts and tension to the fibers in a 2-dimensional panel prior to shaping the panel into a 3-dimensional part. The predictive modeling software identifies areas of fiber tension in the final molded product, and relief cuts are made in those areas. The plies are loaded into grippers attached to a supporting frame and predictive modeling software is used to identify areas of fiber compression in the final molded product. Tension is applied to the identified areas of fiber compression. The panel is molded in a form and cure press, and the tension is maintained on the material while closing the mold halves. The molded part is able to conform to the final mold shape without tearing in areas of tension and without material buildup in areas of compression in the final molded part or post mold distortion.

Description

[0001] Cross References to Related Art [0002] This application claims the benefit of US Provisional Application Serial No. 61 / 739,301, filed December 19, 2012, which is hereby incorporated in its entirety. technical field [0003] The present invention relates to a process for using predictive modeling software control for selectively applying tension and relief cuts to fibers in a two-dimensional composite panel prior to shaping the panel into a three-dimensional part. Background technique [0004] Two-dimensional composite panels formed from resin and reinforcing fibers can be customized into three-dimensional parts using a molding process. Two-dimensional panels can be preheated to increase their formability in the mold, but as the panel follows the contours of the mold, the fibers in some areas are compressed and the fibers in other areas are tensioned. [0005] Fiber compression leads to undesired material accumulation of excess fibers in compressed areas, bunching a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00
CPCB29C70/46B29C70/545B29C70/56B29B15/08B29C2793/0036B29C2793/0081B29C70/20G05B19/4097G05B2219/45204
Inventor D.奥尔曼R.A.柯勒斯J.S.希塞特
Owner FIVES MACHINING SYST
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