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Spiral forming

A technology of helical and edge areas, applied in the direction of length measuring device, contour control, manufacturing tools, etc., can solve problems such as deformation and failure of manufacturing structures

Active Publication Date: 2018-04-17
KEYSTONE TOWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this technique can be used to fabricate a variety of useful structures, such as steel towers for wind turbines, the process is still susceptible to large-scale deformation of the fabricated structure caused by small cumulative errors in alignment and feed rates or failure

Method used

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Embodiment Construction

[0048] Embodiments will now be described more fully hereinafter with reference to the accompanying drawings in which preferred embodiments are shown. However, the foregoing may be embodied in many different forms and should not be construed as limited to the illustrated embodiments described herein.

[0049] All documents mentioned herein are hereby incorporated by reference in their entirety. References to items mentioned in the singular should be understood to include the plural and vice versa, unless expressly stated otherwise or clear from the context. Grammatical conjunctions are intended to mean any and all transitions and connecting combinations of connecting clauses, sentences, words, etc., unless otherwise indicated or clear from context. Thus, the term "or" should generally be understood to mean "and / or" and the like.

[0050] Recitation of ranges of values ​​herein are not intended to be limiting, but instead independently represent any and all values ​​falling wi...

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Abstract

Spiral forming methods can be used to join edges of a rolled material along a spiral joint to form conical and / or cylindrical structures. Alignment of the edges of the rolled material can be controlled in a wrapping direction as the material is being joined along the spiral joint to form the structure. By controlling alignment of the edges of the material as the edges of the material are being joined, small corrections can be made over the course of forming the structure facilitating control over geometric tolerances of the resulting spiral formed structure.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application No. 62 / 185064, filed June 26, 2015, the entire contents of which are incorporated herein by reference. [0003] Government License Rights [0004] This invention was made with government support under NSF Phase II SBIR grant NSF IIP-1353507 awarded by the National Natural Science Foundation of China. The US Government has certain rights in this invention. Background technique [0005] In a spiral forming manufacturing process, the steel sheet is fed into a rolling mill and continuously rolled into the desired shape. For example, using this technique, a cylindrical or conical shape can be formed by feeding a suitably shaped sheet of material into a rolling mill and continuously joining the curved roll-formed material along a helical edge as the material exits the rolling mill. Although this technique can be used to fabricate a variety of useful st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B38/10B21B37/00B21B37/16B21B37/38B21B38/00B21B38/04
CPCB21B38/10B21B37/00B21B37/16B21B37/38B21B38/00B21B38/04B21C37/122B21C37/124B21C37/185F03D13/20F05B2240/912B21C37/128B21C37/12
Inventor E.D.史密斯R.K.塔卡塔D.艾恩奇L.D.布里奇斯
Owner KEYSTONE TOWER SYST