{"id":5586,"date":"2026-08-14T12:34:12","date_gmt":"2026-08-14T04:34:12","guid":{"rendered":"https:\/\/www.scojetchina.com\/?p=5586"},"modified":"2026-08-18T13:58:09","modified_gmt":"2026-08-18T05:58:09","slug":"die-casting-for-automotive-cylinder-head","status":"publish","type":"post","link":"https:\/\/www.scojetchina.com\/de\/die-casting-for-automotive-cylinder-head\/","title":{"rendered":"Die Casting for Automotive Cylinder Head"},"content":{"rendered":"
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Case Overview<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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This case involves an automotive cylinder head<\/strong>, a small aluminum alloy die-cast component supplied to the overseas automotive parts market.<\/p>

The product requires high dimensional precision, with all dimensional tolerances directly ensured by the die casting mold without any subsequent machining. To meet the customer’s high-volume production requirements, this project adopted a 24-cavity precision mold design<\/strong>, increasing the output per die casting cycle and reducing processing steps to achieve high-efficiency, low-cost mass production.<\/p>

The product is die-cast from ADC12 aluminum alloy and requires no additional surface treatment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Part Information<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Item<\/b><\/strong><\/td>Parameter<\/b><\/strong><\/td><\/tr>
Part Name<\/b><\/strong><\/td>Automotive Cylinder Head<\/td><\/tr>
Application Industry<\/b><\/strong><\/td>Overseas Automotive Parts<\/td><\/tr>
Material \/ Grade<\/b><\/strong><\/td>ADC12<\/td><\/tr>
Product Dimensions<\/b><\/strong><\/td>33 mm \u00d7 43 mm \u00d7 15 mm<\/td><\/tr>
Product Weight<\/b><\/strong><\/td>20 g<\/td><\/tr>
Manufacturing Process Combination<\/b><\/strong><\/td>Druckgie\u00dfen<\/td><\/tr>
Surface Treatment Process<\/b><\/strong><\/td>No Surface Treatment Required<\/td><\/tr>
Quality Inspection Method<\/b><\/strong><\/td>ZEISS CMM Measurement<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Project Difficulties and Technical Challenges<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Core Challenge 1: High Dimensional Accuracy Requirements, with All Tolerances Ensured by the Mold<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The automotive cylinder head adopts a machining-free process and is used directly as a finished product after die casting.<\/p>

Compared with conventional die-cast components, this process eliminates subsequent machining for dimensional correction. Therefore:<\/p>

  • Product dimensional accuracy depends entirely on mold cavity accuracy;<\/li>
  • Aluminum alloy shrinkage variations need to be compensated for in advance;<\/li>
  • Mold wear directly affects product dimensional stability;<\/li>
  • Any local dimensional deviation cannot be corrected through machining.<\/li><\/ul>

    Therefore, this project places higher requirements on mold manufacturing accuracy, cavity consistency, and die casting process stability.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Core Challenge 2: Multi-Cavity Consistency Control Under High-Volume Production Requirements<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Due to the extremely high annual demand for the product, the customer requires higher production efficiency to reduce the manufacturing cost per part.<\/p>

    This project adopts a 24-cavity mold design<\/strong>, but multi-cavity production also introduces new challenges:<\/p>

    • All 24 cavities need to maintain dimensional consistency;<\/li>
    • Molten aluminum filling times across all cavities need to be synchronized as closely as possible;<\/li>
    • Dimensional variations between different cavities must be avoided;<\/li>
    • Mold wear during long-term production needs to be controlled.<\/li><\/ul>

      Therefore, while achieving high-efficiency production, it is also necessary to ensure that every cavity continuously and consistently produces qualified parts.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Core Challenge 3: Cost Control Requirements in High-Volume Production<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      The automotive cylinder head is a high-volume automotive part, and the customer has high requirements for both unit manufacturing cost and production efficiency.<\/p>

      Traditional processes typically require additional machining after die casting, which not only increases equipment investment, labor costs, and processing cycles, but also results in material loss.<\/p>

      Therefore, this project needs to reduce overall production costs by optimizing the manufacturing process while meeting dimensional accuracy requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Solution: Precision Mold Machining + Copper Electrodes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      To meet the machining-free, high-precision, and high-volume production requirements of the automotive cylinder head, this project adopted precision mold machining combined with copper electrode machining technology to improve mold cavity accuracy and multi-cavity consistency.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      Precision Mold Machining<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Since the final product dimensions are directly determined by the mold, the following aspects are strictly controlled during mold manufacturing:<\/p>

      • Mold cavity dimensional accuracy;<\/li>
      • Consistency among multiple cavities;<\/li>
      • Long-term mold production stability.<\/li><\/ul>

        Through high-precision mold manufacturing equipment combined with optimization based on mold trial data, the dimensions of the die-cast products are ensured to meet the required specifications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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        Copper Electrode Machining of Mold Cavities<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        For complex structural areas within the mold, copper electrodes are used for EDM machining.<\/p>

        Copper electrodes offer:<\/p>

        • Stable electrical discharge;<\/li>
        • High machining accuracy;<\/li>
        • Good surface quality;<\/li>
        • Suitability for machining complex and fine structures.<\/li><\/ul>

          Through precision electrode machining, cavity detail dimensions are ensured, improving product forming accuracy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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          24-Cavity Mold Design Optimization<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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          To meet high-volume production requirements, the 24-cavity mold was optimized through:<\/p>

          • Balancing the gating system to ensure consistent filling across all cavities;<\/li>
          • Optimizing venting design to reduce casting defects;<\/li>
          • Controlling mold temperature uniformity to improve dimensional stability;<\/li>
          • Reducing dimensional fluctuations through mass production process monitoring.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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            Case Summary<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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            For this dimensionally precise automotive component with extremely high annual demand, the project adopted a process solution combining precision mold forming (machining-free) + a high-efficiency 24-cavity mold<\/strong>, achieving high-quality, high-efficiency, and low-cost production.<\/p>

            Technical Challenge<\/b><\/strong><\/p><\/td>

            Solution<\/b><\/strong><\/p><\/td>

            Result<\/b><\/strong><\/p><\/td><\/tr>

            Precise product dimensions that cannot be corrected through machining<\/p><\/td>

            Precision mold machining + copper electrode machining of mold cavities<\/p><\/td>

            Ensured that the product meets dimensional requirements directly after forming<\/p><\/td><\/tr>

            Extremely high annual demand requiring high-efficiency production<\/p><\/td>

            24-cavity multi-cavity mold design<\/p><\/td>

            Increased output per die casting cycle and reduced unit cost<\/p><\/td><\/tr>

            Multi-cavity production may cause dimensional differences<\/p><\/td>

            Optimized gating system and mold accuracy control<\/p><\/td>

            Ensured consistency across products from all 24 cavities<\/p><\/td><\/tr>

            Need to reduce processing steps<\/p><\/td>

            Adopted a machining-free die casting process<\/p><\/td>

            Reduced equipment investment and processing costs<\/p><\/td><\/tr>

            Dimensional stability verification<\/p><\/td>

            ZEISS CMM inspection<\/p><\/td>

            Achieved data-based control of critical dimensions<\/p><\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

            Enabled machining-free, high-volume production of the automotive cylinder head with a 24-cavity precision mold, maintaining dimensional consistency while reducing processing steps and unit manufacturing cost.<\/p>","protected":false},"author":1,"featured_media":5546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[73],"tags":[],"class_list":["post-5586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case"],"_links":{"self":[{"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/posts\/5586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/comments?post=5586"}],"version-history":[{"count":7,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/posts\/5586\/revisions"}],"predecessor-version":[{"id":5630,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/posts\/5586\/revisions\/5630"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/media\/5546"}],"wp:attachment":[{"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/media?parent=5586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/categories?post=5586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.scojetchina.com\/de\/wp-json\/wp\/v2\/tags?post=5586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}