Windshield bending technologies have developed since the first commercial pieces of glass were bent at the end of the 1940s. The simple one-directional bending method didn\u2019t require much from technology. Yet the first double curves introduced in the late 1950s started an evolution that continues today. Although there are many sub-processes involved, the key technique for optical quality and shape accuracy is the bending process. Without perfect bending, the whole process fails. There are three bending processes that are in use today: gravity bending, press bending and press-assisted bending.<\/p>\n
Gravity bending is a cost-effective process to create any shapes, even deeper sags, wrap-around corners and also when a wider variety of coating options are needed. Gravity bending is best used for short series because many different types of molds can be used simultaneously in the process. This makes it the best bending process for automotive replacement glass manufacturers (AGRs) as only one mold is required for short runs.<\/p>\n
Earlier, shaping was difficult because heat came only from above. Now with the latest technology, focused overall heating with power regulation and double-actuated molds with triggering devices allow much more precise shape control resulting in better end quality.<\/p><\/blockquote>\n
Press bending <\/strong><\/h3>\n
From a process point of view, press-based bending systems are simple and don\u2019t require focused heating or complicated molds. There are only two phases in the process: heating the glass in a furnace and using molds to press it into the desired shape. This bending process gives very high output, good repeatability and tight tolerances.<\/p>\n
\u00a0The construction is relative complicated and requires expensive shape-specific tooling.\u00a0 Due to its high initial investment and tooling cost, it is applicable only for OEMs who need very high-volume production.<\/p><\/blockquote>\n
\u00a0Press-assisted bending<\/strong><\/h3>\n
The press-assisted system gives high output, good repeatability and tight tolerances, which makes it suitable for long-series OEM production. This bending process combines the benefits of both gravity bending and press bending. When combined with a gravity-based system, the furnace can be used either as a gravity bender or press bender. This makes it the perfect tool for medium-scale operations requiring operational flexibility and long-series OEM windshield production.<\/p>\n
Check out our upcoming blogs with more tips for windshield manufacturers.<\/p>\n","protected":false},"excerpt":{"rendered":"
Windshield bending technologies have developed since the first commercial pieces of glass were bent at the end of the 1940s. The simple one-directional bending method didn\u2019t require much from technology. Yet the first double curves introduced in the late 1950s started an evolution that continues today. Although there are many sub-processes involved, the key technique […]<\/p>\n","protected":false},"author":83,"featured_media":2439,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[1939],"tags":[2031,2278,2034,2056,2064,2280,2244,2009,2249,2018,2346,2134],"acf":[],"aioseo_notices":[],"yoast_head":"\n
Bending as a key factor in windshield manufacturing – Glastory<\/title>\n<meta name=\"description\" content=\"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bending as a key factor in windshield manufacturing – Glastory\" \/>\n<meta property=\"og:description\" content=\"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\" \/>\n<meta property=\"og:site_name\" content=\"Glastory\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GlastonCorporation\" \/>\n<meta property=\"article:published_time\" content=\"2015-04-28T09:53:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-11-09T14:48:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.glastory.net\/wp-content\/uploads\/2015\/04\/Glaston-windshield-bending.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"3000\" \/>\n\t<meta property=\"og:image:height\" content=\"2000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Juha Karisola\" \/>\n<meta name=\"twitter:label1\" content=\"Kirjoittanut\" \/>\n\t<meta name=\"twitter:data1\" content=\"Juha Karisola\" \/>\n\t<meta name=\"twitter:label2\" content=\"Arvioitu lukuaika\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.glastory.net\/#organization\",\"name\":\"Glastory\",\"url\":\"https:\/\/www.glastory.net\/\",\"sameAs\":[\"https:\/\/www.youtube.com\/user\/GlastonCorporation\",\"https:\/\/www.instagram.com\/glastoncorp\/\",\"https:\/\/www.linkedin.com\/company\/107541\/\",\"https:\/\/www.facebook.com\/GlastonCorporation\",\"https:\/\/twitter.com\/GlastonCorp\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fi\",\"@id\":\"https:\/\/www.glastory.net\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.glastory.net\/wp-content\/uploads\/2022\/11\/Glastory_Logo_Final_color.png\",\"contentUrl\":\"https:\/\/www.glastory.net\/wp-content\/uploads\/2022\/11\/Glastory_Logo_Final_color.png\",\"width\":2402,\"height\":1717,\"caption\":\"Glastory\"},\"image\":{\"@id\":\"https:\/\/www.glastory.net\/#\/schema\/logo\/image\/\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.glastory.net\/#website\",\"url\":\"https:\/\/www.glastory.net\/\",\"name\":\"Glastory\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.glastory.net\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.glastory.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\",\"url\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\",\"name\":\"Bending as a key factor in windshield manufacturing – Glastory\",\"isPartOf\":{\"@id\":\"https:\/\/www.glastory.net\/#website\"},\"datePublished\":\"2015-04-28T09:53:18+00:00\",\"dateModified\":\"2022-11-09T14:48:41+00:00\",\"description\":\"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#breadcrumb\"},\"inLanguage\":\"fi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.glastory.net\/fi\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Bending as a key factor in windshield manufacturing\"}]},{\"@type\":\"Article\",\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\"},\"author\":{\"name\":\"Juha Karisola\",\"@id\":\"https:\/\/www.glastory.net\/#\/schema\/person\/f2847f57a9482960b63028ea22222ea7\"},\"headline\":\"Bending as a key factor in windshield manufacturing\",\"datePublished\":\"2015-04-28T09:53:18+00:00\",\"dateModified\":\"2022-11-09T14:48:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/\"},\"wordCount\":376,\"publisher\":{\"@id\":\"https:\/\/www.glastory.net\/#organization\"},\"keywords\":[\"Automobil\",\"automotive glass\",\"Biegen\",\"Ausr\u00fcstung\",\"Glasbiegen\",\"glass processing\",\"glass quality\",\"Matrix\",\"safety glass\",\"ScreenMax\",\"technology\",\"Windschutzscheibe\"],\"articleSection\":[\"Glas\"],\"inLanguage\":\"fi\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.glastory.net\/#\/schema\/person\/f2847f57a9482960b63028ea22222ea7\",\"name\":\"Juha Karisola\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fi\",\"@id\":\"https:\/\/www.glastory.net\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.glastory.net\/wp-content\/uploads\/avatars\/83\/bd2fb7315f9aabcf6c44f89bdfe4c6d3-bpfull.jpg\",\"contentUrl\":\"https:\/\/www.glastory.net\/wp-content\/uploads\/avatars\/83\/bd2fb7315f9aabcf6c44f89bdfe4c6d3-bpfull.jpg\",\"caption\":\"Juha Karisola\"},\"url\":\"https:\/\/www.glastory.net\/fi\/author\/juhakarisola\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bending as a key factor in windshield manufacturing – Glastory","description":"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/","og_locale":"fi_FI","og_type":"article","og_title":"Bending as a key factor in windshield manufacturing – Glastory","og_description":"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.","og_url":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/","og_site_name":"Glastory","article_publisher":"https:\/\/www.facebook.com\/GlastonCorporation","article_published_time":"2015-04-28T09:53:18+00:00","article_modified_time":"2022-11-09T14:48:41+00:00","og_image":[{"width":3000,"height":2000,"url":"https:\/\/www.glastory.net\/wp-content\/uploads\/2015\/04\/Glaston-windshield-bending.jpg","type":"image\/jpeg"}],"author":"Juha Karisola","twitter_misc":{"Kirjoittanut":"Juha Karisola","Arvioitu lukuaika":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Organization","@id":"https:\/\/www.glastory.net\/#organization","name":"Glastory","url":"https:\/\/www.glastory.net\/","sameAs":["https:\/\/www.youtube.com\/user\/GlastonCorporation","https:\/\/www.instagram.com\/glastoncorp\/","https:\/\/www.linkedin.com\/company\/107541\/","https:\/\/www.facebook.com\/GlastonCorporation","https:\/\/twitter.com\/GlastonCorp"],"logo":{"@type":"ImageObject","inLanguage":"fi","@id":"https:\/\/www.glastory.net\/#\/schema\/logo\/image\/","url":"https:\/\/www.glastory.net\/wp-content\/uploads\/2022\/11\/Glastory_Logo_Final_color.png","contentUrl":"https:\/\/www.glastory.net\/wp-content\/uploads\/2022\/11\/Glastory_Logo_Final_color.png","width":2402,"height":1717,"caption":"Glastory"},"image":{"@id":"https:\/\/www.glastory.net\/#\/schema\/logo\/image\/"}},{"@type":"WebSite","@id":"https:\/\/www.glastory.net\/#website","url":"https:\/\/www.glastory.net\/","name":"Glastory","description":"","publisher":{"@id":"https:\/\/www.glastory.net\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.glastory.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fi"},{"@type":"WebPage","@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/","url":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/","name":"Bending as a key factor in windshield manufacturing – Glastory","isPartOf":{"@id":"https:\/\/www.glastory.net\/#website"},"datePublished":"2015-04-28T09:53:18+00:00","dateModified":"2022-11-09T14:48:41+00:00","description":"This article introduces the bending processes that are in use today in windshield manufacturing: gravity bending, press bending and press-assisted bending.","breadcrumb":{"@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#breadcrumb"},"inLanguage":"fi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.glastory.net\/fi\/"},{"@type":"ListItem","position":2,"name":"Bending as a key factor in windshield manufacturing"}]},{"@type":"Article","@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/#article","isPartOf":{"@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/"},"author":{"name":"Juha Karisola","@id":"https:\/\/www.glastory.net\/#\/schema\/person\/f2847f57a9482960b63028ea22222ea7"},"headline":"Bending as a key factor in windshield manufacturing","datePublished":"2015-04-28T09:53:18+00:00","dateModified":"2022-11-09T14:48:41+00:00","mainEntityOfPage":{"@id":"https:\/\/www.glastory.net\/de\/bending-as-a-key-factor-in-windshield-manufacturing\/"},"wordCount":376,"publisher":{"@id":"https:\/\/www.glastory.net\/#organization"},"keywords":["Automobil","automotive glass","Biegen","Ausr\u00fcstung","Glasbiegen","glass processing","glass quality","Matrix","safety glass","ScreenMax","technology","Windschutzscheibe"],"articleSection":["Glas"],"inLanguage":"fi"},{"@type":"Person","@id":"https:\/\/www.glastory.net\/#\/schema\/person\/f2847f57a9482960b63028ea22222ea7","name":"Juha Karisola","image":{"@type":"ImageObject","inLanguage":"fi","@id":"https:\/\/www.glastory.net\/#\/schema\/person\/image\/","url":"https:\/\/www.glastory.net\/wp-content\/uploads\/avatars\/83\/bd2fb7315f9aabcf6c44f89bdfe4c6d3-bpfull.jpg","contentUrl":"https:\/\/www.glastory.net\/wp-content\/uploads\/avatars\/83\/bd2fb7315f9aabcf6c44f89bdfe4c6d3-bpfull.jpg","caption":"Juha Karisola"},"url":"https:\/\/www.glastory.net\/fi\/author\/juhakarisola\/"}]}},"_links":{"self":[{"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/posts\/2359"}],"collection":[{"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/comments?post=2359"}],"version-history":[{"count":2,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/posts\/2359\/revisions"}],"predecessor-version":[{"id":2451,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/posts\/2359\/revisions\/2451"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/media\/2439"}],"wp:attachment":[{"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/media?parent=2359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/categories?post=2359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.glastory.net\/fi\/wp-json\/wp\/v2\/tags?post=2359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}