{"id":3108,"date":"2026-03-26T14:26:18","date_gmt":"2026-03-26T06:26:18","guid":{"rendered":"https:\/\/lt-aluminum.com\/?p=3108"},"modified":"2026-03-26T14:26:19","modified_gmt":"2026-03-26T06:26:19","slug":"evolution-of-6063aluminum-profile-stretch-bending","status":"publish","type":"post","link":"https:\/\/lt-aluminum.com\/ja\/evolution-of-6063aluminum-profile-stretch-bending\/","title":{"rendered":"The Evolution of Aluminum Profile Stretch Bending: Advances in Integrated Extrusion-Bending Technology"},"content":{"rendered":"<p><strong>Executive Summary:<\/strong><br>In the pursuit of lightweighting and structural optimization, the demand for complex curved aluminum profiles has surged across the automotive, aerospace, and high-speed rail industries. While traditional\u00a0aluminum profile stretch bending\u00a0(a secondary cold-forming process) has been the industry standard, it faces challenges such as springback, cross-sectional distortion, and high production costs. This article explores the technical frontier:\u00a0Integrated Extrusion-Bending (IEB) technology. We analyze the transition from traditional stretch bending to one-step forming, detailing the mechanisms of external guiding devices and differential material flow, and providing a roadmap for the future of precision aluminum fabrication.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Introduction: The Rising Demand for Curved Aluminum Profiles<\/h2>\n\n\n\n<p>Aluminum alloy profiles are the backbone of modern industrial design due to their high strength-to-weight ratio, excellent corrosion resistance, and recyclability. Traditionally, straight profiles dominated the market. However, as industries like Electric Vehicles (EVs) and aerospace move toward &#8220;Integrated Bio-structures&#8221; and &#8220;Aerodynamic Efficiency,&#8221; the need for curved profiles has become critical.<\/p>\n\n\n\n<p>Compared to straight sections, curved aluminum profiles offer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Enhanced Structural Rigidity:<\/strong>\u00a0Better load distribution in chassis and frames.<\/li>\n\n\n\n<li><strong>Space Optimization:<\/strong>\u00a0Ability to follow complex contours in tight engine bays or cabins.<\/li>\n\n\n\n<li><strong>Aerodynamic Freedom:<\/strong>\u00a0Enabling sleek, low-drag designs for high-speed transport.<\/li>\n\n\n\n<li><strong>Aesthetic Appeal:<\/strong>\u00a0Vital for modern architectural and industrial design.<\/li>\n<\/ul>\n\n\n\n<p>Despite these benefits, achieving high-precision curvature without compromising material integrity remains a significant engineering challenge. This brings us to the evolution of\u00a0aluminum profile stretch bending.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"290\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-1024x290.webp\" alt=\"Aluminum Profile Stretch Bending\" class=\"wp-image-3111\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-1024x290.webp 1024w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-300x85.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-768x218.webp 768w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-18x5.webp 18w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-600x170.webp 600w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending.webp 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Traditional Aluminum Profile Stretch Bending vs. Integrated Technology<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 The Limitations of Two-Step Cold Bending<\/h3>\n\n\n\n<p>Traditionally, manufacturing a curved profile is a two-step process:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Extrusion:<\/strong>\u00a0Creating a straight profile.<\/li>\n\n\n\n<li><strong>Bending:<\/strong>\u00a0Using cold-forming techniques such as\u00a0stretch bending, rotary draw bending, or roll bending.<\/li>\n<\/ol>\n\n\n\n<p>While mature, these traditional methods suffer from several &#8220;pain points&#8221;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Springback :<\/strong>\u00a0Once the bending force is removed, the material partially returns to its original shape, making dimensional accuracy difficult to control.<\/li>\n\n\n\n<li><strong>Sectional Deformation:<\/strong>\u00a0Hollow profiles often collapse or wrinkle without internal support (mandrels), which are difficult to use for complex geometries.<\/li>\n\n\n\n<li><strong>Material Fatigue:<\/strong>\u00a0Cold working can introduce residual stresses that lead to micro-cracking or reduced fatigue life.<\/li>\n\n\n\n<li><strong>High Costs:<\/strong>\u00a0Multiple setups, specialized tooling, and high scrap rates increase the total cost of ownership (TCO).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 The Integrated Extrusion-Bending (IEB) Paradigm<\/h3>\n\n\n\n<p>To solve these issues, researchers and manufacturers are turning to\u00a0Integrated Extrusion-Bending (IEB). This &#8220;One-Step&#8221; process shapes the profile while it is still hot and exiting the extrusion die. Because the material is at an elevated temperature, its yield strength is lower, and its ductility is higher, virtually eliminating traditional stretch bending defects.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. IEB Category I: External Bending Device Systems<\/h2>\n\n\n\n<p>The first major branch of integrated technology involves installing a specialized guiding or bending unit at the exit of the extrusion die.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 Technological Variations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single-Guide Systems:<\/strong>\u00a0Uses a single movable tool to apply a lateral force, creating a specific radius.<\/li>\n\n\n\n<li><strong>Segmented Disc Guides:<\/strong>\u00a0Employs multiple discs to distribute the bending force, allowing for more gradual curves and reduced surface marking.<\/li>\n\n\n\n<li><strong>Dual-Guide Systems (Fixed &amp; Mobile):<\/strong>\u00a0The most advanced version. A primary guide controls the initial bend, while a secondary guide compensates for gravity-induced sagging and ensures the curvature remains consistent throughout the extrusion length.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 Integrated Online Quenching<\/h3>\n\n\n\n<p>For heat-treatable alloys (like the 6xxx and 7xxx series), maintaining mechanical properties is vital. Modern IEB setups incorporate\u00a0Online Quenching Units. By using water mist or forced air between the guide tools, the profile is &#8220;frozen&#8221; into its curved shape while undergoing the T4 or T6 heat treatment cycle. This synchronization ensures that the &#8220;stretch bending&#8221; effect happens under optimal thermal conditions, resulting in a 50% to 75% reduction in springback compared to cold stretch bending.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"422\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-1024x422.webp\" alt=\"Integrated Aluminum Profile Stretch Bending process\" class=\"wp-image-3112\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-1024x422.webp 1024w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-300x124.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-768x316.webp 768w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-18x7.webp 18w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process-600x247.webp 600w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Integrated-Aluminum-Profile-Stretch-Bending-process.webp 1049w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. IEB Category II: Differential Material Flow (The Future of Precision)<\/h2>\n\n\n\n<p>The second branch of IEB\u2014and perhaps the most innovative\u2014does not use external force. Instead, it manipulates the internal physics of the extrusion process to make the profile &#8220;naturally&#8221; curve as it exits the die. This is known as\u00a0Differential Material Flow.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.1 Die Geometry Modification<\/h3>\n\n\n\n<p>By altering the design of the extrusion die, engineers can create a velocity gradient across the profile cross-section. If the material on the &#8220;left&#8221; side of the die flows faster than the &#8220;right&#8221; side, the profile will naturally curve toward the right.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Eccentric Die Orifices:<\/strong>\u00a0Offsetting the mandrel or the die opening to create uneven flow resistance.<\/li>\n\n\n\n<li><strong>Variable Bearing Lengths:<\/strong>\u00a0Longer &#8220;land&#8221; areas in the die create more friction, slowing down specific parts of the profile.<\/li>\n\n\n\n<li><strong>Tilted Die Bridges:<\/strong>\u00a0Directing the flow of aluminum into the welding chamber at an angle to induce curvature in hollow sections.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4.2 Multi-Ram Differential Extrusion<\/h3>\n\n\n\n<p>This is the &#8220;high-tech&#8221; pinnacle of integrated forming. Instead of one main piston (ram), the machine uses multiple rams. By controlling the speed of each ram independently, the operator can adjust the profile&#8217;s curvature in real-time.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>2D Bending:<\/strong>\u00a0Using two rams to create planar curves.<\/li>\n\n\n\n<li><strong>3D Spatial Bending:<\/strong>\u00a0Using three or more rams to create complex, &#8220;corkscrew&#8221; or multi-axis curves that would be impossible with traditional aluminum profile stretch bending.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"354\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-with-guide-devices.webp\" alt=\"Aluminum Profile Stretch Bending with guide devices\" class=\"wp-image-3113\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-with-guide-devices.webp 689w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-with-guide-devices-300x154.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-with-guide-devices-18x9.webp 18w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-with-guide-devices-600x308.webp 600w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Technical Advantages: Why IEB is Replacing Traditional Methods<\/h2>\n\n\n\n<p>For SEO purposes and technical clarity, it is essential to highlight the specific advantages of IEB for industrial procurement and engineering:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Zero to Minimal Springback:<\/strong>\u00a0Because the forming occurs at high temperatures (near the solvus temperature of the alloy), elastic recovery is negligible.<\/li>\n\n\n\n<li><strong>Superior Surface Quality:<\/strong>\u00a0Integrated methods reduce the &#8220;orange peel&#8221; effect and surface scratching often seen in cold stretch bending.<\/li>\n\n\n\n<li><strong>Complex Hollow Geometries:<\/strong>\u00a0IEB allows for the bending of thin-walled, multi-chambered profiles without the need for internal fillers or mandrels.<\/li>\n\n\n\n<li><strong>Grain Refinement:<\/strong>\u00a0Research shows that differential lateral extrusion can significantly refine the grain size (e.g., from 350\u03bcm to 3\u03bcm in some alloys), leading to higher tensile strength and hardness.<\/li>\n\n\n\n<li><strong>\u30ea\u30fc\u30f3\u30fb\u30de\u30cb\u30e5\u30d5\u30a1\u30af\u30c1\u30e3\u30ea\u30f3\u30b0<\/strong>\u00a0By combining extrusion, bending, quenching, and cutting into one line, manufacturers reduce floor space requirements and lead times.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. Current Challenges and Engineering Obstacles<\/h2>\n\n\n\n<p>Despite its potential, IEB is not yet a &#8220;plug-and-play&#8221; solution. Several hurdles remain:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Control Complexity:<\/strong>\u00a0Managing the relationship between extrusion speed, temperature, friction, and curvature requires sophisticated AI-driven control systems.<\/li>\n\n\n\n<li><strong>Equipment Investment:<\/strong>\u00a0IEB requires specialized dies and multi-ram presses that are more expensive than standard extrusion lines.<\/li>\n\n\n\n<li><strong>3D Accuracy:<\/strong>\u00a0While 2D bending is becoming stable, high-precision 3D spatial bending still faces challenges in dimensional repeatability.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"846\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results.webp\" alt=\"Precision Aluminum Profile Stretch Bending results\" class=\"wp-image-3116\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results.webp 605w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results-215x300.webp 215w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results-9x12.webp 9w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results-300x420.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Precision-Aluminum-Profile-Stretch-Bending-results-600x839.webp 600w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Future Trends: The Roadmap for Aluminum Profile Bending<\/h2>\n\n\n\n<p>As we look toward 2025 and beyond, the following areas will define the industry:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7.1 Digital Twins and Simulation<\/h3>\n\n\n\n<p>The &#8220;trial and error&#8221; method of die design is being replaced by Finite Element Analysis (FEA) and Digital Twins. Engineers can now simulate the differential flow and predict the exact curvature before a single piece of steel is cut for the die.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7.2 Intelligent Closed-Loop Feedback<\/h3>\n\n\n\n<p>Future IEB lines will feature laser scanning at the exit point. If the curvature deviates by even 0.1mm, the system will automatically adjust the ram speeds or guide positions in real-time to correct the error.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7.3 Advanced Multi-Material Composites<\/h3>\n\n\n\n<p>We are seeing the emergence of\u00a0Composite Bending, where aluminum is co-extruded with other materials (like magnesium or reinforced liners) and bent simultaneously. This creates ultra-high-strength components for the next generation of aerospace frames.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"692\" height=\"793\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use.webp\" alt=\"Aluminum Profile Stretch Bending for aerospace use\" class=\"wp-image-3114\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use.webp 692w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use-262x300.webp 262w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use-10x12.webp 10w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use-300x344.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-for-aerospace-use-600x688.webp 600w\" sizes=\"auto, (max-width: 692px) 100vw, 692px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">8. Conclusion: Choosing the Right Bending Strategy<\/h2>\n\n\n\n<p>For standard, high-volume production of simple curves,\u00a0traditional aluminum profile stretch bending\u00a0remains a cost-effective choice. However, for the &#8220;Tier 1&#8221; automotive and aerospace sectors\u2014where weight, precision, and structural integrity are non-negotiable\u2014Integrated Extrusion-Bending\u00a0represents the future.<\/p>\n\n\n\n<p>By understanding the mechanics of material flow and the benefits of hot-state forming, manufacturers can unlock new possibilities in industrial design, pushing the boundaries of what is possible with aluminum alloys.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"896\" src=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples.webp\" alt=\"Aluminum Profile Stretch Bending hollow pipe samples\" class=\"wp-image-3115\" srcset=\"https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples.webp 720w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples-241x300.webp 241w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples-10x12.webp 10w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples-300x373.webp 300w, https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Aluminum-Profile-Stretch-Bending-hollow-pipe-samples-600x747.webp 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><\/figure>","protected":false},"excerpt":{"rendered":"<p>Executive Summary:In the pursuit of lightweighting and structural optimization, the demand for complex curved aluminum profiles has surged across the automotive, aerospace, and high-speed rail industries. While traditional\u00a0aluminum profile stretch bending\u00a0(a secondary cold-forming process) has been the industry standard, it faces challenges such as springback, cross-sectional distortion, and high production costs. This article explores the technical frontier:\u00a0Integrated Extrusion-Bending (IEB) technology. We analyze the transition from traditional stretch bending to one-step forming, detailing the mechanisms of external guiding devices and differential material flow, and providing a roadmap for the future of precision aluminum fabrication. 1. Introduction: The Rising Demand for Curved Aluminum Profiles Aluminum alloy profiles are the backbone of modern [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3117,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_analysis_target_kw":"","_uag_custom_page_level_css":"","_joinchat":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"uagb_featured_image_src":{"full":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending.webp",1200,718,false],"thumbnail":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-150x150.webp",150,150,true],"medium":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-300x180.webp",300,180,true],"medium_large":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-768x460.webp",768,460,true],"large":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-1024x613.webp",1024,613,true],"1536x1536":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending.webp",1200,718,false],"2048x2048":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending.webp",1200,718,false],"trp-custom-language-flag":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-18x12.webp",18,12,true],"woocommerce_archive_thumbnail":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-300x180.webp",300,180,true],"woocommerce_thumbnail":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-300x300.webp",300,300,true],"woocommerce_single":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-600x359.webp",600,359,true],"woocommerce_gallery_thumbnail":["https:\/\/lt-aluminum.com\/wp-content\/uploads\/2026\/03\/Reduced-springback-Aluminum-Profile-Stretch-Bending-100x100.webp",100,100,true]},"uagb_author_info":{"display_name":"adminn","author_link":"https:\/\/lt-aluminum.com\/ja\/author\/adminn\/"},"uagb_comment_info":0,"uagb_excerpt":"Executive Summary:In the pursuit of lightweighting and structural optimization, the demand for complex curved aluminum profiles has surged across the automotive, aerospace, and high-speed rail industries. While traditional\u00a0aluminum profile stretch bending\u00a0(a secondary cold-forming process) has been the industry standard, it faces challenges such as springback, cross-sectional distortion, and high production costs. This article explores the&hellip;","_links":{"self":[{"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/posts\/3108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/comments?post=3108"}],"version-history":[{"count":1,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/posts\/3108\/revisions"}],"predecessor-version":[{"id":3118,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/posts\/3108\/revisions\/3118"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/media\/3117"}],"wp:attachment":[{"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/media?parent=3108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/categories?post=3108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lt-aluminum.com\/ja\/wp-json\/wp\/v2\/tags?post=3108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}