Investment Casting Process | SR Tech<\/title> <meta name=\"description\" content=\"How the investment casting process works: from wax pattern production to metal pouring, machining, finishing and final inspection.\"> <link rel=\"icon\" type=\"image\/svg+xml\" href=\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 64 64'%3E%3Crect width='64' height='64' rx='8' fill='%23d71920'\/%3E%3Cpath d='M16 19h20c8 0 13 4 13 11 0 5-3 8-8 10l10 10H39L30 41h-4v9H16V19zm10 8v7h9c3 0 5-1 5-4s-2-3-5-3h-9z' fill='white'\/%3E%3C\/svg%3E\"> <\/p>\n<style> #sr-process{--red:#d71920;--dark:#171a1f;--steel:#56606a;--line:#dfe3e7;--soft:#f4f5f6;--white:#fff;color:var(--dark);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.65;overflow:hidden;background:#fff} #sr-process *{box-sizing:border-box}#sr-process a{text-decoration:none}#sr-process img{display:block;max-width:100%}#sr-process .wrap{width:min(1180px,calc(100% - 40px));margin:auto} #sr-process 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p{max-width:730px;margin-bottom:0;color:#ffe8e9}#sr-process .cta .btn{background:#fff;color:var(--red);white-space:nowrap} @media(max-width:980px){#sr-process .hero{min-height:750px;align-items:flex-start}#sr-process .hero-copy{padding-top:72px}#sr-process .hero:after{right:-17%;bottom:10%;width:73vw;opacity:.48}#sr-process .intro,#sr-process .quality{grid-template-columns:1fr;gap:38px}#sr-process .step{grid-template-columns:96px 230px 1fr}#sr-process .insights-grid{grid-template-columns:repeat(2,1fr)}#sr-process .cta-inner{grid-template-columns:1fr}} @media(max-width:700px){#sr-process{font-size:16px}#sr-process .wrap{width:min(100% - 28px,1180px)}#sr-process .hero{min-height:790px}#sr-process .hero-copy{padding:56px 0 270px}#sr-process .hero:before{background:linear-gradient(180deg,#0b0d10 0%,#0b0d10 51%,rgba(11,13,16,.82) 68%,rgba(11,13,16,.25) 100%)}#sr-process .hero:after{width:110vw;right:-39%;bottom:14%;opacity:.46;-webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 28%,#000 100%);mask-image:linear-gradient(180deg,transparent 0%,#000 28%,#000 100%)}#sr-process .lead{font-size:18px}#sr-process .actions{display:grid}#sr-process .btn{width:100%}#sr-process .macro{padding:15px 10px!important;font-size:11px}#sr-process .macro strong{font-size:15px}#sr-process .section{padding:60px 0}#sr-process .section-head{display:block}#sr-process .section-head h2{margin-bottom:15px}#sr-process .timeline:before{left:27px}#sr-process .step{grid-template-columns:55px 1fr;grid-template-rows:190px auto}#sr-process .step-no{grid-row:1\/3;width:48px;height:48px;border-width:4px;font-size:16px}#sr-process .step img{grid-column:2;height:190px;min-height:190px}#sr-process .step-copy{grid-column:2;padding:24px 20px}#sr-process .quality-photo{min-height:360px}#sr-process .checks,#sr-process .insights-grid{grid-template-columns:1fr}#sr-process .insight-card{min-height:auto}} <\/style>\n<p><\/head><body><main id=\"sr-process\"> <\/p>\n<header class=\"hero\"> <\/p>\n<div class=\"wrap\">\n<div class=\"hero-copy\"> <\/p>\n<div class=\"kicker\">Lost wax casting<\/div>\n<p> <\/p>\n<h1>The investment casting process, step by step.<\/h1>\n<p> <pee class=\"lead\">From the wax replica of the component to molten metal pouring, machining and final inspection: nine steps to produce complex, accurate and repeatable parts.<\/pee> <\/p>\n<div class=\"actions\"><a class=\"btn btn-red\" href=\"https:\/\/srtech.it\/en\/investment-casting-products\/\">View investment casting products \u2192<\/a><a class=\"btn btn-outline\" href=\"mailto:commerciale@srtech.it?subject=Investment%20casting%20quotation%20request\">Send us your drawing<\/a><\/div>\n<p> <\/div>\n<\/div>\n<p> <\/p>\n<div class=\"hero-bar\">\n<div class=\"wrap macro-grid\">\n<div class=\"macro\"><strong>01 \u00b7 Pattern<\/strong>wax injection and assembly<\/div>\n<div class=\"macro\"><strong>02 \u00b7 Shell<\/strong>coating and firing<\/div>\n<div class=\"macro\"><strong>03 \u00b7 Metal<\/strong>pouring, finishing and inspection<\/div>\n<\/div>\n<\/div>\n<p> <\/header>\n<p> <\/p>\n<section class=\"section\">\n<div class=\"wrap intro\">\n<div>\n<div class=\"kicker\">How it works<\/div>\n<h2>Three main stages, one complete manufacturing process<\/h2>\n<pee>Investment casting, also known as lost wax casting, uses a wax pattern that reproduces the component while compensating for shrinkage during the process.<\/pee><pee>The pattern is enclosed in a ceramic shell. Once the wax has been removed, molten metal fills the empty cavity and takes the shape of the required component.<\/pee><\/div>\n<div class=\"macro-cards\">\n<article class=\"macro-card\">\n<div class=\"macro-num\">1<\/div>\n<div>\n<h3>Wax tree production<\/h3>\n<pee>Wax pattern injection and assembly onto the central sprue.<\/pee><\/div>\n<\/article>\n<article class=\"macro-card\">\n<div class=\"macro-num\">2<\/div>\n<div>\n<h3>Ceramic shell preparation<\/h3>\n<pee>Successive ceramic coatings, dewaxing and high-temperature firing.<\/pee><\/div>\n<\/article>\n<article class=\"macro-card\">\n<div class=\"macro-num\">3<\/div>\n<div>\n<h3>Component production<\/h3>\n<pee>Metal pouring, shell removal, finishing, machining and final inspection.<\/pee><\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section soft\">\n<div class=\"wrap\">\n<div class=\"section-head\">\n<div>\n<div class=\"kicker\">Manufacturing cycle<\/div>\n<h2>The nine steps of investment casting<\/h2>\n<\/div>\n<pee>Every stage affects dimensional accuracy, surface quality and the metallurgical integrity of the casting.<\/pee><\/div>\n<p> <\/p>\n<div class=\"timeline\"> <\/p>\n<article class=\"step\" id=\"wax-patterns\">\n<div class=\"step-no\">01<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02a.jpg\" alt=\"Wax pattern injection\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Wax pattern<\/span><\/p>\n<h3>Wax pattern injection<\/h3>\n<pee>Wax is injected into dedicated tooling to produce patterns matching the geometry of the final component. This stage determines the accuracy, repeatability and quality of the part.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">02<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02b-1.jpg\" alt=\"Wax tree assembly\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Wax pattern<\/span><\/p>\n<h3>Wax tree assembly<\/h3>\n<pee>The wax patterns are attached to a central wax sprue by controlled heating, creating a single structure commonly called a wax tree.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"ceramic-shell\">\n<div class=\"step-no\">03<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02c-1.jpg\" alt=\"Ceramic shell production\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Ceramic shell<\/span><\/p>\n<h3>Ceramic shell production<\/h3>\n<pee>The wax tree is repeatedly dipped into ceramic slurry and coated with refractory material. The first layer, which is in direct contact with the wax, is critical to the final surface quality.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">04<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02d1.jpg\" alt=\"Dewaxing and ceramic shell firing\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Ceramic shell<\/span><\/p>\n<h3>Dewaxing and firing<\/h3>\n<pee>The wax is removed from the dried shell. The empty ceramic shell is then fired at high temperature to obtain the mechanical and thermal strength required for metal pouring.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"pouring\">\n<div class=\"step-no\">05<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02e-1.jpg\" alt=\"Molten metal pouring\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Metal<\/span><\/p>\n<h3>Molten metal pouring<\/h3>\n<pee>The molten alloy is gravity-poured into the hot ceramic shell. Controlled temperatures minimise thermal shock and support uniform cooling of the casting.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">06<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02f-1.jpg\" alt=\"Ceramic shell removal\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Extraction<\/span><\/p>\n<h3>Shell removal and cut-off<\/h3>\n<pee>After solidification, the ceramic shell is broken away. The individual castings are then separated from the central tree by mechanical or thermal cutting.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"finishing\">\n<div class=\"step-no\">07<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02g-1.jpg\" alt=\"Investment casting finishing\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Finished component<\/span><\/p>\n<h3>Finishing and machining<\/h3>\n<pee>The gate areas are removed and, when required, the castings undergo heat treatment, CNC machining, drilling, threading, grinding and surface finishing.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"inspection\">\n<div class=\"step-no\">08<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/controlli-1.jpg\" alt=\"Dimensional inspection of investment castings\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Quality<\/span><\/p>\n<h3>Dimensional and quality inspection<\/h3>\n<pee>The alloy, manufacturing process and finished component are inspected to verify drawing compliance, casting integrity and consistent production quality.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">09<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/packing-1.jpg\" alt=\"Packing investment cast components\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Supply chain<\/span><\/p>\n<h3>Packing, shipping and Kanban stock<\/h3>\n<pee>Approved components are packed and shipped by sea or air. At its Parma warehouse, SR Tech manages dedicated stock and scheduled deliveries according to customised Kanban systems.<\/pee><\/div>\n<\/article>\n<p> <\/div>\n<p> <\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section\">\n<div class=\"wrap quality\">\n<div class=\"quality-photo\"><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/controlli-1.jpg\" alt=\"Quality inspection of an investment cast component\"><\/div>\n<div>\n<div class=\"kicker\">Casting quality<\/div>\n<h2>Inspection is not only the final stage<\/h2>\n<pee>Final quality depends on systematic control of the entire cycle: wax pattern stability, shell uniformity, alloy composition, melting and pouring temperatures, cooling and subsequent operations.<\/pee>\n<ul class=\"checks\">\n<li>Chemical analysis of the alloy<\/li>\n<li>Dimensional inspection<\/li>\n<li>CMM inspection reports<\/li>\n<li>EN 10204 3.1 material certificate<\/li>\n<li>Visual inspection<\/li>\n<li>Specific tests on request<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section soft\"> <\/p>\n<div class=\"wrap\"> <\/p>\n<div class=\"kicker\">Technical resources<\/div>\n<p> <\/p>\n<h2>Learn more about investment casting<\/h2>\n<p> <pee class=\"insights-intro\">Explore the technology, view components manufactured for different industries and compare dimensional tolerances and suitable applications.<\/pee> <\/p>\n<div class=\"insights-grid\"> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting\/\"> <span class=\"insight-number\">01<\/span> <\/p>\n<h3>Investment casting<\/h3>\n<p> <pee>Technology, materials, advantages and services provided by SR Tech.<\/pee> <span class=\"insight-link\">View the page \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting-products\/\"> <span class=\"insight-number\">02<\/span> <\/p>\n<h3>Investment casting products<\/h3>\n<p> <pee>Raw, machined and finished components for different industrial sectors.<\/pee> <span class=\"insight-link\">View the products \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting-dimensional-tolerances\/\"> <span class=\"insight-number\">03<\/span> <\/p>\n<h3>Dimensional tolerances<\/h3>\n<p> <pee>Review achievable tolerances and the applicable dimensional tolerance grades.<\/pee> <span class=\"insight-link\">View the tables \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/comparison-between-investment-casting-and-other-technologies\/\"> <span class=\"insight-number\">04<\/span> <\/p>\n<h3>Technology comparison<\/h3>\n<p> <pee>Compare investment casting with CNC machining, forging and other processes.<\/pee> <span class=\"insight-link\">Compare the processes \u2192<\/span> <\/a> <\/div>\n<p> <\/div>\n<p> <\/section>\n<p> <\/p>\n<section class=\"cta\">\n<div class=\"wrap cta-inner\">\n<div>\n<h2>Would you like to know whether your component is suitable for investment casting?<\/h2>\n<pee>Send us the 2D or 3D drawing, material specification and estimated quantities. We will evaluate the geometry, tolerances, finishing requirements and manufacturing solution.<\/pee><\/div>\n<p><a class=\"btn\" href=\"mailto:commerciale@srtech.it?subject=Investment%20casting%20project%20assessment\">Send your drawing \u2192<\/a><\/div>\n<\/section>\n<p><\/main><\/body><\/html>[\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2141,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-1336","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n<title>Investment Casting Process | SR Tech srl - Articoli Tecnici a Disegno<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/srtech.it\/en\/investment-casting-process-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investment Casting Process | SR Tech srl - 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{"id":1336,"date":"2019-10-30T13:51:14","date_gmt":"2019-10-30T13:51:14","guid":{"rendered":"https:\/\/srtech.it\/investment-casting-process\/"},"modified":"2026-09-16T21:14:26","modified_gmt":"2026-09-16T21:14:26","slug":"investment-casting-process-2","status":"publish","type":"page","link":"https:\/\/srtech.it\/en\/investment-casting-process-2\/","title":{"rendered":"Investment Casting Process"},"content":{"rendered":"

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.hero{min-height:790px}#sr-process .hero-copy{padding:56px 0 270px}#sr-process .hero:before{background:linear-gradient(180deg,#0b0d10 0%,#0b0d10 51%,rgba(11,13,16,.82) 68%,rgba(11,13,16,.25) 100%)}#sr-process .hero:after{width:110vw;right:-39%;bottom:14%;opacity:.46;-webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 28%,#000 100%);mask-image:linear-gradient(180deg,transparent 0%,#000 28%,#000 100%)}#sr-process .lead{font-size:18px}#sr-process .actions{display:grid}#sr-process .btn{width:100%}#sr-process .macro{padding:15px 10px!important;font-size:11px}#sr-process .macro strong{font-size:15px}#sr-process .section{padding:60px 0}#sr-process .section-head{display:block}#sr-process .section-head h2{margin-bottom:15px}#sr-process .timeline:before{left:27px}#sr-process .step{grid-template-columns:55px 1fr;grid-template-rows:190px auto}#sr-process .step-no{grid-row:1\/3;width:48px;height:48px;border-width:4px;font-size:16px}#sr-process .step img{grid-column:2;height:190px;min-height:190px}#sr-process .step-copy{grid-column:2;padding:24px 20px}#sr-process .quality-photo{min-height:360px}#sr-process .checks,#sr-process .insights-grid{grid-template-columns:1fr}#sr-process .insight-card{min-height:auto}} <\/style>\n<p><\/head><body><main id=\"sr-process\"> <\/p>\n<header class=\"hero\"> <\/p>\n<div class=\"wrap\">\n<div class=\"hero-copy\"> <\/p>\n<div class=\"kicker\">Lost wax casting<\/div>\n<p> <\/p>\n<h1>The investment casting process, step by step.<\/h1>\n<p> <pee class=\"lead\">From the wax replica of the component to molten metal pouring, machining and final inspection: nine steps to produce complex, accurate and repeatable parts.<\/pee> <\/p>\n<div class=\"actions\"><a class=\"btn btn-red\" href=\"https:\/\/srtech.it\/en\/investment-casting-products\/\">View investment casting products \u2192<\/a><a class=\"btn btn-outline\" href=\"mailto:commerciale@srtech.it?subject=Investment%20casting%20quotation%20request\">Send us your drawing<\/a><\/div>\n<p> <\/div>\n<\/div>\n<p> <\/p>\n<div class=\"hero-bar\">\n<div class=\"wrap macro-grid\">\n<div class=\"macro\"><strong>01 \u00b7 Pattern<\/strong>wax injection and assembly<\/div>\n<div class=\"macro\"><strong>02 \u00b7 Shell<\/strong>coating and firing<\/div>\n<div class=\"macro\"><strong>03 \u00b7 Metal<\/strong>pouring, finishing and inspection<\/div>\n<\/div>\n<\/div>\n<p> <\/header>\n<p> <\/p>\n<section class=\"section\">\n<div class=\"wrap intro\">\n<div>\n<div class=\"kicker\">How it works<\/div>\n<h2>Three main stages, one complete manufacturing process<\/h2>\n<pee>Investment casting, also known as lost wax casting, uses a wax pattern that reproduces the component while compensating for shrinkage during the process.<\/pee><pee>The pattern is enclosed in a ceramic shell. Once the wax has been removed, molten metal fills the empty cavity and takes the shape of the required component.<\/pee><\/div>\n<div class=\"macro-cards\">\n<article class=\"macro-card\">\n<div class=\"macro-num\">1<\/div>\n<div>\n<h3>Wax tree production<\/h3>\n<pee>Wax pattern injection and assembly onto the central sprue.<\/pee><\/div>\n<\/article>\n<article class=\"macro-card\">\n<div class=\"macro-num\">2<\/div>\n<div>\n<h3>Ceramic shell preparation<\/h3>\n<pee>Successive ceramic coatings, dewaxing and high-temperature firing.<\/pee><\/div>\n<\/article>\n<article class=\"macro-card\">\n<div class=\"macro-num\">3<\/div>\n<div>\n<h3>Component production<\/h3>\n<pee>Metal pouring, shell removal, finishing, machining and final inspection.<\/pee><\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section soft\">\n<div class=\"wrap\">\n<div class=\"section-head\">\n<div>\n<div class=\"kicker\">Manufacturing cycle<\/div>\n<h2>The nine steps of investment casting<\/h2>\n<\/div>\n<pee>Every stage affects dimensional accuracy, surface quality and the metallurgical integrity of the casting.<\/pee><\/div>\n<p> <\/p>\n<div class=\"timeline\"> <\/p>\n<article class=\"step\" id=\"wax-patterns\">\n<div class=\"step-no\">01<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02a.jpg\" alt=\"Wax pattern injection\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Wax pattern<\/span><\/p>\n<h3>Wax pattern injection<\/h3>\n<pee>Wax is injected into dedicated tooling to produce patterns matching the geometry of the final component. This stage determines the accuracy, repeatability and quality of the part.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">02<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02b-1.jpg\" alt=\"Wax tree assembly\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Wax pattern<\/span><\/p>\n<h3>Wax tree assembly<\/h3>\n<pee>The wax patterns are attached to a central wax sprue by controlled heating, creating a single structure commonly called a wax tree.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"ceramic-shell\">\n<div class=\"step-no\">03<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02c-1.jpg\" alt=\"Ceramic shell production\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Ceramic shell<\/span><\/p>\n<h3>Ceramic shell production<\/h3>\n<pee>The wax tree is repeatedly dipped into ceramic slurry and coated with refractory material. The first layer, which is in direct contact with the wax, is critical to the final surface quality.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">04<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02d1.jpg\" alt=\"Dewaxing and ceramic shell firing\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Ceramic shell<\/span><\/p>\n<h3>Dewaxing and firing<\/h3>\n<pee>The wax is removed from the dried shell. The empty ceramic shell is then fired at high temperature to obtain the mechanical and thermal strength required for metal pouring.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"pouring\">\n<div class=\"step-no\">05<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02e-1.jpg\" alt=\"Molten metal pouring\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Metal<\/span><\/p>\n<h3>Molten metal pouring<\/h3>\n<pee>The molten alloy is gravity-poured into the hot ceramic shell. Controlled temperatures minimise thermal shock and support uniform cooling of the casting.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">06<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02f-1.jpg\" alt=\"Ceramic shell removal\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Extraction<\/span><\/p>\n<h3>Shell removal and cut-off<\/h3>\n<pee>After solidification, the ceramic shell is broken away. The individual castings are then separated from the central tree by mechanical or thermal cutting.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"finishing\">\n<div class=\"step-no\">07<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/00_process02g-1.jpg\" alt=\"Investment casting finishing\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Finished component<\/span><\/p>\n<h3>Finishing and machining<\/h3>\n<pee>The gate areas are removed and, when required, the castings undergo heat treatment, CNC machining, drilling, threading, grinding and surface finishing.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\" id=\"inspection\">\n<div class=\"step-no\">08<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/controlli-1.jpg\" alt=\"Dimensional inspection of investment castings\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Quality<\/span><\/p>\n<h3>Dimensional and quality inspection<\/h3>\n<pee>The alloy, manufacturing process and finished component are inspected to verify drawing compliance, casting integrity and consistent production quality.<\/pee><\/div>\n<\/article>\n<p> <\/p>\n<article class=\"step\">\n<div class=\"step-no\">09<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/packing-1.jpg\" alt=\"Packing investment cast components\"><\/p>\n<div class=\"step-copy\"><span class=\"phase\">Supply chain<\/span><\/p>\n<h3>Packing, shipping and Kanban stock<\/h3>\n<pee>Approved components are packed and shipped by sea or air. At its Parma warehouse, SR Tech manages dedicated stock and scheduled deliveries according to customised Kanban systems.<\/pee><\/div>\n<\/article>\n<p> <\/div>\n<p> <\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section\">\n<div class=\"wrap quality\">\n<div class=\"quality-photo\"><img decoding=\"async\" src=\"https:\/\/www.srtech.it\/wp-content\/uploads\/2019\/07\/controlli-1.jpg\" alt=\"Quality inspection of an investment cast component\"><\/div>\n<div>\n<div class=\"kicker\">Casting quality<\/div>\n<h2>Inspection is not only the final stage<\/h2>\n<pee>Final quality depends on systematic control of the entire cycle: wax pattern stability, shell uniformity, alloy composition, melting and pouring temperatures, cooling and subsequent operations.<\/pee>\n<ul class=\"checks\">\n<li>Chemical analysis of the alloy<\/li>\n<li>Dimensional inspection<\/li>\n<li>CMM inspection reports<\/li>\n<li>EN 10204 3.1 material certificate<\/li>\n<li>Visual inspection<\/li>\n<li>Specific tests on request<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/section>\n<p> <\/p>\n<section class=\"section soft\"> <\/p>\n<div class=\"wrap\"> <\/p>\n<div class=\"kicker\">Technical resources<\/div>\n<p> <\/p>\n<h2>Learn more about investment casting<\/h2>\n<p> <pee class=\"insights-intro\">Explore the technology, view components manufactured for different industries and compare dimensional tolerances and suitable applications.<\/pee> <\/p>\n<div class=\"insights-grid\"> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting\/\"> <span class=\"insight-number\">01<\/span> <\/p>\n<h3>Investment casting<\/h3>\n<p> <pee>Technology, materials, advantages and services provided by SR Tech.<\/pee> <span class=\"insight-link\">View the page \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting-products\/\"> <span class=\"insight-number\">02<\/span> <\/p>\n<h3>Investment casting products<\/h3>\n<p> <pee>Raw, machined and finished components for different industrial sectors.<\/pee> <span class=\"insight-link\">View the products \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/investment-casting-dimensional-tolerances\/\"> <span class=\"insight-number\">03<\/span> <\/p>\n<h3>Dimensional tolerances<\/h3>\n<p> <pee>Review achievable tolerances and the applicable dimensional tolerance grades.<\/pee> <span class=\"insight-link\">View the tables \u2192<\/span> <\/a> <a class=\"insight-card\" href=\"https:\/\/srtech.it\/en\/comparison-between-investment-casting-and-other-technologies\/\"> <span class=\"insight-number\">04<\/span> <\/p>\n<h3>Technology comparison<\/h3>\n<p> <pee>Compare investment casting with CNC machining, forging and other processes.<\/pee> <span class=\"insight-link\">Compare the processes \u2192<\/span> <\/a> <\/div>\n<p> <\/div>\n<p> <\/section>\n<p> <\/p>\n<section class=\"cta\">\n<div class=\"wrap cta-inner\">\n<div>\n<h2>Would you like to know whether your component is suitable for investment casting?<\/h2>\n<pee>Send us the 2D or 3D drawing, material specification and estimated quantities. We will evaluate the geometry, tolerances, finishing requirements and manufacturing solution.<\/pee><\/div>\n<p><a class=\"btn\" href=\"mailto:commerciale@srtech.it?subject=Investment%20casting%20project%20assessment\">Send your drawing \u2192<\/a><\/div>\n<\/section>\n<p><\/main><\/body><\/html>[\/et_pb_fullwidth_code][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2141,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-1336","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n<title>Investment Casting Process | SR Tech srl - Articoli Tecnici a Disegno<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/srtech.it\/en\/investment-casting-process-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investment Casting Process | SR Tech srl - 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