Archived
deploy.
This commit is contained in:
@@ -0,0 +1,146 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
<title>Cutting Force Anomaly Cases | HiAPI-C# 2025 </title>
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<meta name="title" content="Cutting Force Anomaly Cases | HiAPI-C# 2025 ">
|
||||
|
||||
|
||||
<link rel="icon" href="../../img/HiAPI.favicon.ico">
|
||||
<link rel="stylesheet" href="../../public/docfx.min.css">
|
||||
<link rel="stylesheet" href="../../public/main.css">
|
||||
<meta name="docfx:navrel" content="../../toc.html">
|
||||
<meta name="docfx:tocrel" content="toc.html">
|
||||
|
||||
<meta name="docfx:rel" content="../../">
|
||||
|
||||
|
||||
|
||||
<meta name="loc:inThisArticle" content="In this article">
|
||||
<meta name="loc:searchResultsCount" content="{count} results for "{query}"">
|
||||
<meta name="loc:searchNoResults" content="No results for "{query}"">
|
||||
<meta name="loc:tocFilter" content="Filter by title">
|
||||
<meta name="loc:nextArticle" content="Next">
|
||||
<meta name="loc:prevArticle" content="Previous">
|
||||
<meta name="loc:themeLight" content="Light">
|
||||
<meta name="loc:themeDark" content="Dark">
|
||||
<meta name="loc:themeAuto" content="Auto">
|
||||
<meta name="loc:changeTheme" content="Change theme">
|
||||
<meta name="loc:copy" content="Copy">
|
||||
<meta name="loc:downloadPdf" content="Download PDF">
|
||||
|
||||
<script type="module" src="./../../public/docfx.min.js"></script>
|
||||
|
||||
<script>
|
||||
const theme = localStorage.getItem('theme') || 'auto'
|
||||
document.documentElement.setAttribute('data-bs-theme', theme === 'auto' ? (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light') : theme)
|
||||
</script>
|
||||
|
||||
</head>
|
||||
|
||||
<body class="tex2jax_ignore" data-layout="" data-yaml-mime="">
|
||||
<header class="bg-body border-bottom">
|
||||
<nav id="autocollapse" class="navbar navbar-expand-md" role="navigation">
|
||||
<div class="container-xxl flex-nowrap">
|
||||
<a class="navbar-brand" href="../../index.html">
|
||||
<img id="logo" class="svg" src="../../img/HiAPI.logo.png" alt="">
|
||||
|
||||
</a>
|
||||
<button class="btn btn-lg d-md-none border-0" type="button" data-bs-toggle="collapse" data-bs-target="#navpanel" aria-controls="navpanel" aria-expanded="false" aria-label="Toggle navigation">
|
||||
<i class="bi bi-three-dots"></i>
|
||||
</button>
|
||||
<div class="collapse navbar-collapse" id="navpanel">
|
||||
<div id="navbar">
|
||||
<form class="search" role="search" id="search">
|
||||
<i class="bi bi-search"></i>
|
||||
<input class="form-control" id="search-query" type="search" disabled placeholder="Search" autocomplete="off" aria-label="Search">
|
||||
</form>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</nav>
|
||||
</header>
|
||||
|
||||
<main class="container-xxl">
|
||||
<div class="toc-offcanvas">
|
||||
<div class="offcanvas-md offcanvas-start" tabindex="-1" id="tocOffcanvas" aria-labelledby="tocOffcanvasLabel">
|
||||
<div class="offcanvas-header">
|
||||
<h5 class="offcanvas-title" id="tocOffcanvasLabel">Table of Contents</h5>
|
||||
<button type="button" class="btn-close" data-bs-dismiss="offcanvas" data-bs-target="#tocOffcanvas" aria-label="Close"></button>
|
||||
</div>
|
||||
<div class="offcanvas-body">
|
||||
<nav class="toc" id="toc"></nav>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="content">
|
||||
<div class="actionbar">
|
||||
<button class="btn btn-lg border-0 d-md-none" type="button" data-bs-toggle="offcanvas" data-bs-target="#tocOffcanvas" aria-controls="tocOffcanvas" aria-expanded="false" aria-label="Show table of contents">
|
||||
<i class="bi bi-list"></i>
|
||||
</button>
|
||||
|
||||
<nav id="breadcrumb"></nav>
|
||||
</div>
|
||||
|
||||
<article data-uid="Technique-AnomalyCases">
|
||||
<h1 id="cutting-force-anomaly-cases">Cutting Force Anomaly Cases</h1>
|
||||
|
||||
<p>Both cases below cost a customer yield, and in both the cause was invisible on the machine and
|
||||
unmistakable in simulation. They are worth reading together, because they fail the same way: an
|
||||
intermittent force spike far outside normal cutting, at a location that moves.</p>
|
||||
<h2 id="case-i--face-milling-into-a-thin-workpiece">Case I — Face Milling Into a Thin Workpiece</h2>
|
||||
<p>A face milling operation, not fully entering from the side, produced forces <strong>10 to 30 times</strong>
|
||||
normal cutting.</p>
|
||||
<p><img src="anomaly-cases-img/face-milling-thin-workpiece.jpg" alt="Abnormal face milling on a thin workpiece"></p>
|
||||
<p>The engineers first suspected the clamping setup. The cause was in the NC: one face milling
|
||||
operation, inside an extensive program, moved straight down in a way that let the flute rotate
|
||||
into the workpiece at a critical moment. Because the impact depended on rotational phase, some
|
||||
runs completed cleanly, which is exactly what made the clamping hypothesis look plausible. The
|
||||
result was severe clamping instability and significant yield loss, and the impact was too brief
|
||||
to catch by watching.</p>
|
||||
<h2 id="case-ii--impeller-medium-milling">Case II — Impeller, Medium Milling</h2>
|
||||
<p>A toolpath interference where the front and back blades connect produced <strong>40 times</strong> normal
|
||||
cutting force, and a high probability of tool breakage.</p>
|
||||
<p><img src="anomaly-cases-img/impeller-medium-milling.jpg" alt="Anomaly in impeller medium milling"></p>
|
||||
<p>Here too the root cause resisted diagnosis on the floor: the error occurred at inconsistent
|
||||
locations, so no single operation looked guilty.</p>
|
||||
<h2 id="why-simulation-finds-them">Why Simulation Finds Them</h2>
|
||||
<p>The forces involved — tens of times average — are an order of magnitude outside the 10%–25%
|
||||
error band the simulation carries between tool types. That gap is what makes these detectable
|
||||
rather than debatable: nothing about model accuracy could produce a 40× reading.</p>
|
||||
<p>The pattern to recognise, in both cases: <strong>intermittent, phase-dependent, and located where a
|
||||
person is not looking</strong>. Those are precisely the properties that make a problem survive on a
|
||||
shop floor, and precisely the ones a per-step simulation is indifferent to.</p>
|
||||
<h2 id="see-also">See Also</h2>
|
||||
<ul>
|
||||
<li><a href="cutting-force.html">Cutting Force and Torque Validation</a> — the error ranges these forces sit far outside</li>
|
||||
<li><a class="xref" href="../milling-physics/machinability.html">Evaluating Process Machinability</a> — the ratios that flag a step like these before it runs</li>
|
||||
</ul>
|
||||
|
||||
</article>
|
||||
|
||||
<div class="contribution d-print-none">
|
||||
</div>
|
||||
|
||||
<div class="next-article d-print-none border-top" id="nextArticle"></div>
|
||||
|
||||
</div>
|
||||
|
||||
<div class="affix">
|
||||
<nav id="affix"></nav>
|
||||
</div>
|
||||
</main>
|
||||
|
||||
<div class="container-xxl search-results" id="search-results"></div>
|
||||
|
||||
<footer class="border-top text-secondary">
|
||||
<div class="container-xxl">
|
||||
<div class="flex-fill">
|
||||
<span> Copyright © 2025 <a href='https://superhightech.com.tw'>Tech Coordinate</a>. All rights reserved. <a href='https://superhightech.com.tw'>超級高科技股份有限公司</a> © 2025 版權所有 </span>
|
||||
</div>
|
||||
</div>
|
||||
</footer>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user