{"id":140,"date":"2020-09-15T09:25:00","date_gmt":"2020-09-15T14:25:00","guid":{"rendered":"https:\/\/www.molddb.com\/articles\/?p=140"},"modified":"2020-09-14T21:26:41","modified_gmt":"2020-09-15T02:26:41","slug":"diy-velocity-study","status":"publish","type":"post","link":"https:\/\/www.molddb.com\/articles\/diy-velocity-study\/","title":{"rendered":"DIY Velocity Study"},"content":{"rendered":"\n<p>Determining an optimized Injection Molding Process is often an overlooked part of getting a product up and running.&nbsp; Getting the process right the first time however can save a lot of headache down the road.&nbsp; The first step to an optimized process is getting the Injection Velocity right.<\/p>\n\n\n\n<p>Many materials come with recommended settings which often provide recommended Velocity ranges.&nbsp; These ranges are usually dictated by the flow characteristics of the specific material.&nbsp; To get a better idea of the velocity for your specific mold a Velocity Study should be performed.<\/p>\n\n\n\n<p>A Velocity Study is a simple step to perform and with some practice and understand not too difficult to interpret the results of either.&nbsp; To start with a Velocity Study looks at the Relative Viscosity versus the Relative Shear Rate of the material for your specific mold and machine setup.&nbsp; A Velocity Study consists of performing multiple sample runs at different velocities.&nbsp; For each velocity tested the fill time and injection pressure are used to determine the relative viscosity and relative shear rate.<\/p>\n\n\n\n<p>The following images show an example collecting the required information for each shot and the corresponding Relative Viscosity and Relative Shear Rate for each velocity tested.&nbsp; These outputs are then plotted on a scatter plot to form a Viscosity Curve.&nbsp; Check out Image 1 below to see a Viscosity Curve example.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.molddb.com\/articles\/wp-content\/uploads\/2020\/09\/ViscosityCurve.jpg\" alt=\"Viscosity Curve Plot\" class=\"wp-image-110\" width=\"430\" height=\"258\" srcset=\"https:\/\/www.molddb.com\/articles\/wp-content\/uploads\/2020\/09\/ViscosityCurve.jpg 581w, https:\/\/www.molddb.com\/articles\/wp-content\/uploads\/2020\/09\/ViscosityCurve-300x180.jpg 300w\" sizes=\"auto, (max-width: 430px) 100vw, 430px\" \/><figcaption>Image 1: Viscosity Curve Example<\/figcaption><\/figure><\/div>\n\n\n\n<p>Ready to try it yourself?&nbsp; Download our DIY Velocity Study Excel Template to get started documenting your own Velocity Studies today.<\/p>\n\n\n\n<hr\/><br\/><form method=\"post\" action=\"https:\/\/www.molddb.com\/MoldDBVelocityStudy.php?r=1748\"><h3>Enter your email to download our <b>Free Velocity Study template<\/b> right now<\/h3><input type=\"text\" name=\"FirstName\" class=\"form-control\" placeholder=\"Your First Name\" \/><br \/><input type=\"text\" name=\"email_address\" class=\"form-control\" placeholder=\"Your Email\" \/><br \/><input type=\"submit\" name=\"mymaillist_Velocity_submit_form\" class=\"btn btn-primary\" value=\"Download\" \/><\/form><br\/>\n","protected":false},"excerpt":{"rendered":"<p>Determining an optimized Injection Molding Process is often an overlooked part of getting a product up and running.&nbsp; Getting the process right the first time however can save a lot of headache down the road.&nbsp; The first step to an optimized process is getting the Injection Velocity right. Many materials come with recommended settings which [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,23],"tags":[27,29,28,6,20,19],"class_list":["post-140","post","type-post","status-publish","format-standard","hentry","category-molding","category-scientific","tag-curve","tag-diy","tag-download","tag-injection","tag-study","tag-velocity"],"_links":{"self":[{"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/posts\/140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/comments?post=140"}],"version-history":[{"count":1,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/posts\/140\/revisions"}],"predecessor-version":[{"id":141,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/posts\/140\/revisions\/141"}],"wp:attachment":[{"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/media?parent=140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/categories?post=140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.molddb.com\/articles\/wp-json\/wp\/v2\/tags?post=140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}