[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-664840-105":59,"doc-detail-664840-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","nadca-product-specification-standards-for-die-castings-2009-tolerances","NADCA Product Specification Standards for Die Castings 2009 - Tolerances","","A technical guide for die casting tolerance selection and engineering design, focusing on how standard and precision tolerances affect part form, fit, and function while balancing manufacturing cost, die life, inspection frequency, and scrap rate. Explains volumetric (feature) tolerance by combining projected area and linear tolerance, including definitions for parting line and moving die component tolerances. Addresses related tolerance topics such as angularity, concentricity, draft, flatness, and design recommendations for cored holes, cast threads, and machining stock allowances, plus key FAQ clarifying common tolerance decisions.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/nadca-product-specification-standards-for-die-castings-2009-tolerances/664840/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/nadca-product-specification-standards-for-die-castings-2009-tolerances/664840.png","ImageObject",300,407,{"name":92,"@type":93},"Muffet","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29",true,{"@type":101,"interactionType":102,"userInteractionCount":81},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What is the difference between Standard and Precision Tolerances?","Question",{"text":111,"@type":112},"Standard Tolerance is the lesser degree of precision that meets most form, fit, and function requirements, with larger variation from specified design values. Precision Tolerance is used for special applications where minor variations adversely affect function, and its variation is smaller than Standard Tolerance.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"What is a Parting Line Shift?",{"text":116,"@type":112},"A Parting Line Shift is a tolerance-related allowance addressed in the applicable sections referenced by the FAQ, specifically in the Parting Line Shift material.",{"name":118,"@type":109,"acceptedAnswer":119},"If my casting requires machining, how should the casting be dimensioned?",{"text":120,"@type":112},"When machining is required, the casting should use Machining Stock Allowances, with guidance referenced in the FAQ pages for the machining stock allowance section.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},664840,1793275198,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":138,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":128,"read_time":143},962090768927,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","ESnecinn Cquentntgkedetiog(FnAQ:) Coordi nNeA DNoi men sFnang P4- c t i o4nA  \n1 Introduction  \n2 Section Objectives  \n3 Standard and Precision Tolerances  \n4 Production Part Technologies  \n5 Die Casting, SSM & Squeeze Cast Part Design  \n6 Linear Dimensions Tolerances  \n7 Parting Line Tolerances  \n8 Moving Die Component Tolerances  \n9 Angularity Tolerances  \n10 Concentricity Tolerances  \n11 Parting Line Shift  \n12 Draft Tolerances  \n13 Flatness Tolerances  \n14 Design Recommendations:  \nCored Holes As-Cast  \n15 Cored Holes for Cut Threads  \n16 Cored Holes for Formed Threads  \n17 Cored Holes for Pipe Threads  \n18 Cast Threads  \n19 Machining Stock Allowance  \n20 Additional Considerations for Large Castings  \n\n|  |\n| --- |\n|  |\n|  |\n|  |\n| S-4A-1-09 |\n| P-4A-1-09 |\n| S-4A-2-09 |\n| P-4A-2-09 |\n| S-4A-3-09 |\n| P-4A-3-09 |\n| S/P-4A-4-09 |\n| S-4A-5-09 |\n| S-4A-6-09 |\n| S/P-4A-7-09 |\n| S-4A-8-09 |\n| P-4A-8-09 |\n|  |\n| S-4A-9-09 |\n| P-4A-9-09 |\n| P-4A-10-09 |\n| S-4A-11-09 |\n| S-4A-12-09 |\n| S/P-4A-13-09 |\n\nStandard Precision Standard Precision Standard Precision  \nStandard/Precision Standard  \nStandard  \nStandard/Precision Standard Precision  \nStandard Precision  \nPrecision Standard  \nStandard  \nStandard/Precision  \n4A-2  \n4A-3  \n4A-3  \n4A-4  \n4A-6  \n4A-7  \n4A-8  \n4A-9 4A-10  \n4A-11  \n4A-12  \n4A-13  \n4A-17  \n4A-19  \n4A-21  \n4A-29  \n4A-30  \n4A-31  \n4A-34  \n4A-35  \n4A-36  \n4A-38  \n4A-39  \n4A-40  \n4A-42  \n4A  \nNADCA Product Specification Standards for Die Castings / 2009 4A-1  \nTolerance in any part is a three-dimensional characteristic. Many different types of tolerance will be discussed throughout sections 4A and 4B. Most feature tolerances will have Linear Tolerance in combination with Projected Area Tolerance to give an overall feature “volumetric”tolerance like Parting Line, Moving Die Component (MDC) and Angularity Tolerances.  \nProjected Area is the area of a specific feature projected into a plane. For parting line and parting line shift the Projected Area is the open area of the die cavity in the parting line plane. For example, if a die half was laid down and filled with liquid, the surface of the liquid is the Projected Area of the parting line. For the MDC, the Projected Area is determined using the same method as for a parting line. See the applicable figures in the appropriate sections for Projected Area.  \nLinear Tolerance is calculated from a line perpendicular to any feature. The Parting Line line is the total depth of molten material on both die halves, which is perpendicular to the parting line plane. The MDC line is the length of the core slide which is perpendicular to the head of the core slide. Length of a core slide is determined from the point where the core first engages the die to its full insertion point.  \nProjected Area Tolerance plus Linear Tolerance equals feature tolerance (tolerance of the volume of the part) .  \nSee Volumetric Tolerance diagram on the facing page.  \nEngineering & Design: Coordinate Dimensioning  \n1Frequently Asked Questions (FAQ)  \n1) What is the difference between Standard and Precision Tolerances? See pages 4A-3 and 4A-4, 3.0 Standard and Precision Tolerances.  \n2) What is a Parting Line Shift?  \nSee pages 4A-19 and 4A-20, Parting Line Shift.  \n3) If my casting requires machining, how should the casting be dimensioned? See page 4A-40 and 4A-41, Machining Stock Allowances.  \n4) How large should a cast-in hole be if threads need to be tapped or formed in the casting? See page 4A-34 and 4A-35, Cored Holes for Cut Threads. Also see pages 4A-36 and 4A-37, Cored Holes for Formed Threads.  \n5) What type of draft should be used on exterior and interior walls?  \nSee pages 4A-21 through 4A-24, Draft Requirements.  \n6) What type of flatness tolerance can be expected on a cast surface? See pages 4A-29 and 4A-30, Flatness Requirements.  \n1 Introduction  \nDie casting requires a specific degree of precision for the end product to meet the requirements of form, fit and function. However there is a cost","cbCaieIAFpQJt23I","https://ap.wps.com/l/cbCaieIAFpQJt23I","pdf",2217060,44,"English","# Introduction\n## Section Objectives\n## Standard and Precision Tolerances\n## Production Part Technologies\n## Die Casting, SSM & Squeeze Cast Part Design\n## Linear Dimensions Tolerances\n## Parting Line Tolerances\n## Moving Die Component Tolerances\n## Angularity Tolerances\n## Concentricity Tolerances\n## Parting Line Shift\n## Draft Tolerances\n## Flatness Tolerances\n## Design Recommendations: Cored Holes As-Cast\n## Cored Holes for Cut Threads\n## Cored Holes for Formed Threads\n## Cored Holes for Pipe Threads\n## Cast Threads\n## Machining Stock Allowance\n## Additional Considerations for Large Castings\n# Frequently Asked Questions (FAQ)","[{\"question\":\"What is the difference between Standard and Precision Tolerances?\",\"answer\":\"Standard Tolerance is the lesser degree of precision that meets most form, fit, and function requirements, with larger variation from specified design values. Precision Tolerance is used for special applications where minor variations adversely affect function, and its variation is smaller than Standard Tolerance.\"},{\"question\":\"What is a Parting Line Shift?\",\"answer\":\"A Parting Line Shift is a tolerance-related allowance addressed in the applicable sections referenced by the FAQ, specifically in the Parting Line Shift material.\"},{\"question\":\"If my casting requires machining, how should the casting be dimensioned?\",\"answer\":\"When machining is required, the casting should use Machining Stock Allowances, with guidance referenced in the FAQ pages for the machining stock allowance section.\"}]","NADCA Product Specification Standards for Die Castings 2009 - Tolerances | PDF",111]