{"id":10883,"date":"2026-01-07T12:28:50","date_gmt":"2026-01-07T11:28:50","guid":{"rendered":"https:\/\/ikv-aachen.de\/student-research-theses\/investigation-of-the-flow-behavior-of-thermoplastics-in-eroded-injection-molding-cavities\/"},"modified":"2026-01-22T16:09:37","modified_gmt":"2026-01-22T15:09:37","slug":"investigation-of-the-flow-behavior-of-thermoplastics-in-eroded-injection-molding-cavities","status":"publish","type":"cpt_ikv_srt","link":"https:\/\/ikv-aachen.de\/en\/student-research-theses\/investigation-of-the-flow-behavior-of-thermoplastics-in-eroded-injection-molding-cavities\/","title":{"rendered":"Investigation of the flow behavior of thermoplastics in eroded injection molding cavities"},"content":{"rendered":"<style type=\"text\/css\">\n    #single-header-block_efff4c327d3ad70c0d47da547e998a9f .swiperThumbsNavi .swiper-slide {\n        opacity: 0.4;\n    }\n\n    #single-header-block_efff4c327d3ad70c0d47da547e998a9f .swiperThumbsNavi .swiper-slide-thumb-active {\n        opacity: 1;\n    }\n<\/style>\n    <section id=\"single-header-block_efff4c327d3ad70c0d47da547e998a9f\" class=\"block-single-header theGridWrapper \">\n        <div class=\"theGrid12\">\n            <div class=\" col-start-2 col-span-10 md:col-start-3  md:col-span-8\">\n                <h2 class=\"font-serif font-semibold text-blue text-sm w-4\/5\">\n                    Bachelor&#8217;s Thesis or Master&#8217;s Thesis                <\/h2>\n                                                    <div class=\"skewToMiddle\">\n                        <div class=\"relative  text-blue text-sm font after:border-2  after:border-blue rounded-xl bg-green-lighter  p-base -rotate-6 my-xl  after:block after:absolute after:w-full after:h-full after: after:-z-10 after:rounded-xl after:rotate-1  after:box-content  after:-top-2xs after:-left-2xs after:bg-blend-multiply  leading-snug \">\n                            <div class=\"skewToMiddleInner\">\n                                Within the scope of your work, analyze the differences that arise in tooling cavities with varying surface structures and roughness during forming processes.                            <\/div>\n                        <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Topic of the work:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The cavities of injection molds can be machined using a wide variety of manufacturing processes. In addition to conventional machining processes, which produce periodic surface structures in the tool steel, ablative processes can also be used. This includes die-sinking, which uses spark erosion to create aperiodic structures that are recognizable as crater-shaped surfaces. These different surface topographies have an influence on the flow behavior of the plastic melt in the mould. For example, a flow path extension can be observed for cavities produced by electrical discharge machining compared to milled cavities. This finding will now be further investigated in order to research new surface topographies, molding compounds and cavity depths.<\/p>\n\n\n<figure class=\" relative flex flex-col gap-2xs mb-xs md:mb-l xl:mb-xl\"><img decoding=\"async\"  class=\" w-full  \"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2026\/01\/Stuwi-unterschiedliche-fliessweglaengen-bei-gefraesten-und-erodierten-spritzgiesskavitaeten.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2026\/01\/Stuwi-unterschiedliche-fliessweglaengen-bei-gefraesten-und-erodierten-spritzgiesskavitaeten.jpg 752w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2026\/01\/Stuwi-unterschiedliche-fliessweglaengen-bei-gefraesten-und-erodierten-spritzgiesskavitaeten-748x359.jpg 748w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" width=\"752\" height=\"361\" alt=\"Stuwi-unterschiedliche-flie\u00dfwegl\u00e4ngen-bei-gefr\u00e4sten-und-erodierten-spritzgie\u00dfkavit\u00e4ten\" loading=\"lazy\" \/><span class=\" text-copyright order-3 justify-end text-right w-full  w-full \">&copy; IKV<\/span><figcaption class=\" w-full  text-figcaption justify-end text-right \">Different flow path lengths in milled and EDM (electrical discharge machined) injection mold cavities.<\/figcaption><\/figure>\n\n\n<h3 class=\"wp-block-heading\"><strong>The work is related to this research project:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Your work is related to the DFG project &#8220;AOS&#8221; (Analysis of functional surfaces of injection molding cavities produced by electrical discharge machining), which is being carried out in cooperation with the MTI at RWTH Aachen University. In this project, the research focus is on the analysis of different cavity surfaces of injection molds produced by die-sinking EDM. The aim is to work out which surface structures prove to be particularly advantageous in terms of the achievable flow path length and demoldability and how these structures can be reproducibly manufactured.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Objective:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As part of your work, you will therefore work out how amorphous and semi-crystalline molding compounds behave in the injection molding process with regard to flow path length and degree of molding when mold cavities with varying surface structures are used.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Your task:<\/strong><\/h3>\n\n\n<style type=\"text\/css\">#table-from-csv-block_c08ee0536cc7315aca0753699144a1a5 table:not(thead) td:before { content: attr(data-col-name); }\n<\/style><section id=\"table-from-csv-block_c08ee0536cc7315aca0753699144a1a5\" class=\"block-table-from-csv theGridWrapper  text-sm   \">\n\n<table class='w-full'>\n\n<thead class='font-semibold font-serif hidden  text-blue  lg:table-row-group'>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal   '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >For a Bachelor&#039;s thesis, you will work on the following tasks:<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >For a Master&#039;s thesis, you will work on the following tasks:<\/td>\n\t<\/tr>\n\n<\/thead>\n\n<tbody class='lg:table-row-group'>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >Literature research on the influence of surface roughness on the flow behavior of plastic melts<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >Literature research on the influence of surface roughness on the flow behavior of plastic melts<\/td>\n\t<\/tr>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >Injection molding of flow meanders with different molding compounds<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >Injection molding of flow meanders with different molding compounds<\/td>\n\t<\/tr>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >Evaluation of flow path lengths<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >investigation of varying cavity depths<\/td>\n\t<\/tr>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >Analysis of surface roughness in the microscopy laboratory<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >evaluation of flow path lengths<\/td>\n\t<\/tr>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >Characterization of the moulding behaviour depending on the material<\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >Analysis of the surface roughness in the microscopy laboratory<\/td>\n\t<\/tr>\n\t<tr class=' flex flex-col mt-xs lg:border-t border-dashed first:border-none lg:border-white lg:table-row tableToNormal     odd:bg-green-lighter even:bg-green-lightest py-8 xl:py-2 '>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Bachelor's thesis, you will work on the following tasks:' >  <\/td>\n\t\t<td class='grid grid-cols-2 gap-xs lg:table-cell before:block lg:before:hidden first:pl-2xs last:pr-2xs   before:text-right before:font-semibold before:font-serif align-top  py-3xs ' data-col-name='For a Master's thesis, you will work on the following tasks:' >Characterization of the moulding behaviour as a function of material and part geometry<\/td>\n\t<\/tr>\n\n<\/tbody>\n<\/table>\n\n<\/section>\n\n\n<h3 class=\"wp-block-heading\"><strong>Your profile<\/strong>:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Technical or scientific degree (e.g. mechanical engineering \/ industrial engineering, specializing in mechanical engineering, general mechanical engineering, materials science, industrial engineering, specializing in materials and process engineering, applied polymer science)<\/li>\n\n\n\n<li>Initial experience in plastics processing and ideally in injection molding<\/li>\n\n\n\n<li>Interest in practical work on injection molding machines and microscopy<\/li>\n\n\n\n<li>Independent, structured and autonomous work<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If the task appeals to you and you would like to start your thesis at IKV, you are welcome to contact me by phone, e-mail or in person at the institute. We will then coordinate the schedule and the exact scope of your work according to your individual requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As part of your work, work out the differences that arise for mold cavities with varying surface structures and roughness during shaping<\/p>\n","protected":false},"featured_media":10629,"parent":0,"template":"","srtk":[807,808],"research_fields":[813],"esl":[687],"class_list":["post-10883","cpt_ikv_srt","type-cpt_ikv_srt","status-publish","has-post-thumbnail","hentry","srtk-bachelor-thesis","srtk-master-thesis","research_fields-injection-moulding","esl-literature-research"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Investigation of the flow behavior of thermoplastics in eroded injection molding cavities | IKV-Aachen<\/title>\n<meta name=\"description\" content=\"As part of your work, work out the differences that 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