{"id":3695,"date":"2026-04-27T20:47:38","date_gmt":"2026-04-27T13:47:38","guid":{"rendered":"https:\/\/smed.petra.ac.id\/?post_type=faculty-post&#038;p=3695"},"modified":"2026-04-27T20:47:38","modified_gmt":"2026-04-27T13:47:38","slug":"modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy","status":"publish","type":"faculty-post","link":"https:\/\/smed.petra.ac.id\/en\/faculty-post\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\/","title":{"rendered":"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy"},"content":{"rendered":"<p>Strategies to\u00a0<i>improve<\/i>\u00a0quality of gravity die casting for Sn-Pb alloy are outlined here by modifying the mould\u2019s gating system, i.e. mainly the down sprue and the sprue well. Analysis based on the experimental work of 27 casting products delivers a promising result for industrial application. Quantitative analysis of porosity defect in this work was based on density analysis. The investigation of the effect of down sprue design on the casting defects was worked out through the variation of tapered down sprue by one degree and two degrees. From the density analysis, the two degrees tapered down sprue results in then less porosity defect. Meanwhile, the highest density was identified at 50 mm, when radius of the down sprue was investigated at 0 mm, 5 mm and 100 mm. Finally, the investigation for sprue well radius of 0 mm, 50 mm, and 100 mm shows that the best sprue well radius related to the highest metal density occurs at a radius of 50 mm.<\/p>","protected":false},"author":27,"featured_media":0,"template":"","class_list":["post-3695","faculty-post","type-faculty-post","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy - Sustainable Mechanical Engineering and Design<\/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:\/\/smed.petra.ac.id\/en\/faculty-post\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy - Sustainable Mechanical Engineering and Design\" \/>\n<meta property=\"og:description\" content=\"Strategies to\u00a0improve\u00a0quality of gravity die casting for Sn-Pb alloy are outlined here by modifying the mould\u2019s gating system, i.e. mainly the down sprue and the sprue well. Analysis based on the experimental work of 27 casting products delivers a promising result for industrial application. Quantitative analysis of porosity defect in this work was based on [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/smed.petra.ac.id\/en\/faculty-post\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\/\" \/>\n<meta property=\"og:site_name\" content=\"Sustainable Mechanical Engineering and Design\" \/>\n<meta property=\"og:image\" content=\"https:\/\/smed.petra.ac.id\/wp-content\/uploads\/2023\/03\/02-Logo-Petra-Inter.png\" \/>\n\t<meta property=\"og:image:width\" content=\"842\" \/>\n\t<meta property=\"og:image:height\" content=\"296\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/faculty-post\\\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\\\/\",\"url\":\"https:\\\/\\\/smed.petra.ac.id\\\/faculty-post\\\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\\\/\",\"name\":\"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy - Sustainable Mechanical Engineering and Design\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#website\"},\"datePublished\":\"2026-04-27T13:47:38+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/faculty-post\\\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/smed.petra.ac.id\\\/faculty-post\\\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/faculty-post\\\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Beranda\",\"item\":\"https:\\\/\\\/smed.petra.ac.id\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#website\",\"url\":\"https:\\\/\\\/smed.petra.ac.id\\\/\",\"name\":\"Sustainable Mechanical Engineering and Design\",\"description\":\"Inovasi Teknologi Otomotif dan Teknik Mesin Universitas Kristen Petra.\",\"publisher\":{\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/smed.petra.ac.id\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#organization\",\"name\":\"Universitas Kristen Petra\",\"url\":\"https:\\\/\\\/smed.petra.ac.id\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/smed.petra.ac.id\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/02-Logo-Petra-Inter.png\",\"contentUrl\":\"https:\\\/\\\/smed.petra.ac.id\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/02-Logo-Petra-Inter.png\",\"width\":842,\"height\":296,\"caption\":\"Universitas Kristen Petra\"},\"image\":{\"@id\":\"https:\\\/\\\/smed.petra.ac.id\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.instagram.com\\\/mechanical.pcu\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy - Sustainable Mechanical Engineering and Design","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:\/\/smed.petra.ac.id\/en\/faculty-post\/modified-down-sprue-and-sprue-well-to-improve-die-casting-quality-of-sn-pb-alloy\/","og_locale":"en_US","og_type":"article","og_title":"Modified down sprue and sprue well to improve die casting quality of Sn-Pb alloy - Sustainable Mechanical Engineering and Design","og_description":"Strategies to\u00a0improve\u00a0quality of gravity die casting for Sn-Pb alloy are outlined here by modifying the mould\u2019s gating system, i.e. mainly the down sprue and the sprue well. 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