{"id":40094,"date":"2024-08-16T09:43:07","date_gmt":"2024-08-16T01:43:07","guid":{"rendered":"https:\/\/honwaygroup.com\/grinding-and-polishing-and-surface-roughness-comparison-table\/"},"modified":"2025-01-08T11:00:22","modified_gmt":"2025-01-08T03:00:22","slug":"grinding-and-polishing-and-surface-roughness-comparison-table","status":"publish","type":"post","link":"https:\/\/honwaygroup.com\/en\/grinding-and-polishing-and-surface-roughness-comparison-table\/","title":{"rendered":"Comparison Chart of Grinding Polishing and Surface Roughness"},"content":{"rendered":"\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li class=\"\"><a href=\"#%E5%89%8D%E8%A8%80\">Introduction<\/a><\/li><li class=\"\"><a href=\"#%E8%A1%A8%E9%9D%A2%E7%B2%97%E7%B3%99%E5%BA%A6%E5%B0%8D%E7%85%A7%E8%A1%A8\">Comparison Chart of Surface Roughness<\/a><\/li><li class=\"\"><a href=\"#%E8%A1%A8%E9%9D%A2%E7%B2%97%E7%B3%99%E5%BA%A6%E8%88%87%E5%85%89%E6%BD%94%E5%BA%A6%E5%B0%8D%E7%85%A7%E8%A1%A8\">Surface Roughness and Smoothness Comparison Table<\/a><\/li><li class=\"\"><a href=\"#%E7%A0%94%E7%A3%A8%E6%8B%8B%E5%85%89%E8%88%87%E8%A1%A8%E9%9D%A2%E7%B2%97%E7%B3%99%E5%BA%A6%E5%B0%8D%E7%85%A7%E8%A1%A8\">Comparison Chart of Grinding Polishing and Surface Roughness<\/a><\/li><\/ul><\/nav><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"&#x524D;&#x8A00;\"><strong>Introduction<\/strong><\/h3>\n\n<p class=\"has-medium-font-size\">&#8220;Surface roughness&#8221; refers to how rough or smooth a surface is, and it is closely related to our daily lives. From production to manufacturing, mastering its measurement is crucial. Before diving into the topic, it&#8217;s important to understand that &#8220;not everything should be pursued for extreme smoothness; instead, the focus should be on achieving &#8216;appropriate roughness&#8217; based on specific needs.&#8221;<\/p>\n\n<p class=\"has-medium-font-size\">You may ask why?<\/p>\n\n<p class=\"has-medium-font-size\">Because when we set a very low Ra value during processing, the required manpower, time, and costs can multiply significantly.<\/p>\n\n<p class=\"has-medium-font-size\">Therefore, choosing an appropriate level of roughness is a more efficient option in the current processing choices.<\/p>\n\n<p class=\"has-medium-font-size\">In manufacturing and processing products, surface quality is extremely important. Surface roughness and smoothness are two key indicators, but they differ in meaning and measurement methods.<\/p>\n\n<p class=\"has-medium-font-size\"><strong>Surface roughness<\/strong>: Refers to the tiny bumps and irregularities on a surface that affect the product&#8217;s function and durability, usually expressed in values such as Ra.<\/p>\n\n<p class=\"has-medium-font-size\"><strong>Smoothness<\/strong>: Describes how smooth a surface is and its ability to reflect light. The smoother the surface, the higher the gloss, making the product look more polished and shiny.<\/p>\n\n<p class=\"has-medium-font-size\"><strong>Roughness affects Smoothness<\/strong>: The rougher the surface, the lower the gloss, as light is scattered rather than reflected. Conversely, lower roughness results in a smoother surface, enhancing gloss and giving the product a more premium appearance.<\/p>\n\n<p class=\"has-medium-font-size\">To achieve the expected smoothness, specialized<strong> polishing materials<\/strong> are typically used. These materials effectively remove minor surface irregularities, making the surface smoother and thus improving gloss. Understanding roughness, gloss, and how to use polishing materials to improve surface quality is crucial for producing high-quality products. Whether to enhance performance or appearance, controlling surface roughness and achieving appropriate gloss are essential steps.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"&#x8868;&#x9762;&#x7C97;&#x7CD9;&#x5EA6;&#x5C0D;&#x7167;&#x8868;\"><strong>Comparison Chart of Surface Roughness<\/strong><\/h3>\n\n<figure style=\"line-height:1.2\" class=\"wp-block-table has-medium-font-size\"><table class=\"has-fixed-layout\" style=\"border-width:1px\"><tbody><tr><td rowspan=\"2\">Surface Condition<\/td><td rowspan=\"2\">Reference Length<\/td><td rowspan=\"2\">Caption<\/td><td colspan=\"3\">Surface Roughness<\/td><\/tr><tr><td>RA<\/td><td>RY(Rmax)<\/td><td>RZ<\/td><\/tr><tr><td rowspan=\"12\">Superfine Surface<\/td><td rowspan=\"4\">0.08<\/td><td rowspan=\"12\">A surface obtained through superfine processing methods, with a smooth finish resembling a mirror.<\/td><td>0.010 a<\/td><td>0.040 s<\/td><td>0.040 z<\/td><\/tr><tr><td>0.012 a<\/td><td>0.050 s<\/td><td>0.050 z<\/td><\/tr><tr><td>0.016 a<\/td><td>0.063 s<\/td><td>0.063 z<\/td><\/tr><tr><td>0.020 a<\/td><td>0.080 s<\/td><td>0.080 z<\/td><\/tr><tr><td rowspan=\"8\">0.25<\/td><td>0.020 a<\/td><td>0.080 s<\/td><td>0.080 z<\/td><\/tr><tr><td>0.025 a<\/td><td>0.100 s<\/td><td>0.100 z<\/td><\/tr><tr><td>0.032 a<\/td><td>0.125 s<\/td><td>0.125 z<\/td><\/tr><tr><td>0.040 a<\/td><td>0.16 s<\/td><td>0.16 z<\/td><\/tr><tr><td>0.050 a<\/td><td>0.20 s<\/td><td>0.20 z<\/td><\/tr><tr><td>0.063 a<\/td><td>0.25 s<\/td><td>0.25 z<\/td><\/tr><tr><td>0.080 a<\/td><td>0.32 s<\/td><td>0.32 z<\/td><\/tr><tr><td>0.100 a<\/td><td>0.40 s<\/td><td>0.40 Z<\/td><\/tr><tr><td rowspan=\"7\">Fine-Cut Surface<\/td><td rowspan=\"7\">0.8<\/td><td rowspan=\"7\">A surface obtained through one or more precise cutting methods such as turning, milling, grinding, boring, lapping, honing, polishing, or scraping. The cutting marks are nearly imperceptible to touch or sight.<\/td><td>2.5 a<\/td><td>10.0 s<\/td><td>10.0 z<\/td><\/tr><tr><td>3.2 a<\/td><td>12.5 s<\/td><td>12.5 z<\/td><\/tr><tr><td>4.0 a<\/td><td>16 s<\/td><td>16 z<\/td><\/tr><tr><td>5.0 a<\/td><td>20 s<\/td><td>20 z<\/td><\/tr><tr><td>6.3 a<\/td><td>25 s<\/td><td>25 z<\/td><\/tr><tr><td>8.0 a<\/td><td>32 s<\/td><td>32 z<\/td><\/tr><tr><td>10.0 a<\/td><td>40 s<\/td><td>40 z<\/td><\/tr><tr><td rowspan=\"7\">Medium-Cut Surface<\/td><td rowspan=\"7\">2.5<\/td><td rowspan=\"7\">A surface obtained through one or more moderate cutting processes such as turning, milling, planing, grinding, drilling, boring, honing, or filing. It feels smooth to the touch, but slight cutting marks can still be visually distinguished.<\/td><td>2.5 a<\/td><td>10.0 s<\/td><td>10.0 z<\/td><\/tr><tr><td>3.2 a<\/td><td>12.5 s<\/td><td>12.5 z<\/td><\/tr><tr><td>4.0 a<\/td><td>16 s<\/td><td>16 z<\/td><\/tr><tr><td>5.0 a<\/td><td>20 s<\/td><td>20 z<\/td><\/tr><tr><td>6.3 a<\/td><td>25 s<\/td><td>25 z<\/td><\/tr><tr><td>8.0 a<\/td><td>32 s<\/td><td>32 z<\/td><\/tr><tr><td>10.0 a<\/td><td>40 s<\/td><td>40 z<\/td><\/tr><tr><td rowspan=\"9\">Rough-Cut Surface<\/td><td rowspan=\"9\">8<\/td><td rowspan=\"9\">A surface obtained through one or more rough cutting processes such as turning, milling, planing, grinding, drilling, boring, or filing. The residual cutting marks are clearly distinguishable by touch and sight.<\/td><td>12.5 a<\/td><td>50 s<\/td><td>50 z<\/td><\/tr><tr><td>16.0 a<\/td><td>63 s<\/td><td>63 z<\/td><\/tr><tr><td>20 a<\/td><td>80 s<\/td><td>80 z<\/td><\/tr><tr><td>25 a<\/td><td>100 s<\/td><td>100 z<\/td><\/tr><tr><td>32 a<\/td><td>125 s<\/td><td>125 z<\/td><\/tr><tr><td>40 a<\/td><td>160 s<\/td><td>160 z<\/td><\/tr><tr><td>50 a<\/td><td>200 s<\/td><td>200 z<\/td><\/tr><tr><td>63 a<\/td><td>250 s<\/td><td>250 z<\/td><\/tr><tr><td>80 a<\/td><td>320 s<\/td><td>320 z<\/td><\/tr><tr><td rowspan=\"2\">As-Cast Surface<\/td><td rowspan=\"2\">25 or above<\/td><td rowspan=\"2\">A surface obtained through non-cutting processes such as casting, forging, die-casting, rolling, flame cutting, or arc cutting. The original surface may be left as-is or slightly refined, but the raw material&#8217;s scale may still be retained.<\/td><td>100 a<\/td><td>400 s<\/td><td>400 z<\/td><\/tr><tr><td>125 a<\/td><td>500 s<\/td><td>500 z<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p><\/p>\n\n<h3 class=\"wp-block-heading\" id=\"&#x8868;&#x9762;&#x7C97;&#x7CD9;&#x5EA6;&#x8207;&#x5149;&#x6F54;&#x5EA6;&#x5C0D;&#x7167;&#x8868;\"><strong>Surface Roughness and Smoothness Comparison Table<\/strong><\/h3>\n\n<figure class=\"wp-block-table has-medium-font-size\"><table class=\"has-fixed-layout\"><tbody><tr><td>Grade Code<\/td><td>RA<\/td><td>RZ<\/td><\/tr><tr><td>\u25b314<\/td><td>\u22640.01 um<\/td><td>\u22640.05 um<\/td><\/tr><tr><td>\u25b313<\/td><td>&gt;0.01~0.02 um<\/td><td>&gt;0.05~0.1 um<\/td><\/tr><tr><td>\u25b312<\/td><td>&gt;0.02-0.04 um<\/td><td>&gt;0.1 ~0.2 um<\/td><\/tr><tr><td>\u25b311<\/td><td>&gt;0.04-0.08 um<\/td><td>&gt;0.2 ~0.4 um<\/td><\/tr><tr><td>\u25b310<\/td><td>&gt;0.08~0.16 um<\/td><td>&gt;0.4-0.8 um<\/td><\/tr><tr><td>\u25b39<\/td><td>&gt;0.16~0.32 um<\/td><td>&gt;0.8~1.6 um<\/td><\/tr><tr><td>\u25b38<\/td><td>&gt;0.32 ~0.63 um<\/td><td>&gt;1.6-3.2 um<\/td><\/tr><tr><td>\u25b37<\/td><td>&gt;0.63~1.25 um<\/td><td>&gt;3.2~6.3 um<\/td><\/tr><tr><td>\u25b36<\/td><td>&gt;1.25~2.5 um<\/td><td>&gt;6.3~10 um<\/td><\/tr><tr><td>\u25b35<\/td><td>&gt;2.5~5 um<\/td><td>&gt;10~20 um<\/td><\/tr><tr><td>\u25b34<\/td><td>&gt;5~10 um<\/td><td>&gt;20~40 um<\/td><\/tr><tr><td>\u25b33<\/td><td>&gt;10~20 um<\/td><td>&gt;40~80 um<\/td><\/tr><tr><td>\u25b32<\/td><td>&gt;20-40 um<\/td><td>&gt;80~160 um<\/td><\/tr><tr><td>\u25b31<\/td><td>&gt;40~80 um<\/td><td>&gt;160~320 um<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p><\/p>\n\n<h3 class=\"wp-block-heading\" id=\"&#x7814;&#x78E8;&#x62CB;&#x5149;&#x8207;&#x8868;&#x9762;&#x7C97;&#x7CD9;&#x5EA6;&#x5C0D;&#x7167;&#x8868;\"><strong>Comparison Chart of Grinding Polishing and Surface Roughness<\/strong><\/h3>\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/08\/LINE_ALBUM_&#x53C3;&#x8003;&#x8CC7;&#x6599;_240815_1.webp\"><img decoding=\"async\" src=\"https:\/\/honwaygroup.com\/wp-content\/uploads\/2024\/08\/LINE_ALBUM_&#x53C3;&#x8003;&#x8CC7;&#x6599;_240815_1-724x1024.webp\" alt=\"Comparison Chart of Grinding Polishing and Surface Roughness\" class=\"wp-image-40074\" style=\"width:725px;height:auto\"\/><\/a><figcaption class=\"wp-element-caption\"><strong>Comparison Chart of Grinding Polishing and Surface Roughness<\/strong><\/figcaption><\/figure>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-6f2b27908f0b0b5720dd046d5f780fe6\" id=\"&#x884C;&#x52D5;\"><strong>Action<\/strong><\/h2>\n\n<ol class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">Has the currently measured surface roughness met your expected target? <\/li>\n\n\n\n<li class=\"has-medium-font-size\">Solution &gt;&gt;&gt; <a href=\"https:\/\/honwaygroup.com\/en\/how-many-of-the-six-types-of-mold-polishing-do-you-know\/\" target=\"_blank\" rel=\"noreferrer noopener\">Six mold polishing techniques: How many do you know?<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\">Implement &gt;&gt;&gt; <a href=\"\/?product_cat=&#x8EDF;&#x6027;&#x7814;&#x78E8;&#x6599;\" target=\"_blank\" rel=\"noreferrer noopener\">polishing abrasives<\/a>, <a href=\"\/?product_cat=&#x5DE5;&#x5177;&#x6A5F;\" target=\"_blank\" rel=\"noreferrer noopener\">polishing equipment<\/a>, <a href=\"https:\/\/honwaygroup.com\/en\/product-category\/diamond-tools\/\" target=\"_blank\" rel=\"noreferrer noopener\">polishing tools<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\">Review<\/li>\n<\/ol>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<p style=\"line-height:0.8\">After reading the content, if you still don\u2019t know how to select the most suitable option,<\/p>\n\n<p style=\"line-height:0.8\">Feel free to contact us and we will have specialist available to answer your questions.<\/p>\n\n<p style=\"line-height:0.8\">If you need customized quotations, you\u2019re also welcome to contact us.<\/p>\n\n<p style=\"line-height:0.8\">Customer Service Hours: Monday to Friday 09:00~18:00 (GMT+8)<\/p>\n\n<p style=\"line-height:0.8\">Phone: +886<a href=\"https:\/\/www.google.com\/search?q=%E5%AE%8F%E5%B4%B4&amp;oq=%E5%AE%8F%E5%B4%B4&amp;gs_lcrp=EgZjaHJvbWUqBggAEEUYOzIGCAAQRRg7MhAIARAuGK8BGMcBGIAEGI4FMgYIAhBFGDsyBwgDEAAYgAQyBggEEEUYPTIGCAUQRRg9MgYIBhBFGD0yBggHEEUYQdIBCDE5MDhqMGo3qAIIsAIB&amp;sourceid=chrome&amp;ie=UTF-8\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">7 223 1058<\/a><\/p>\n\n<p style=\"line-height:0.8\">If you have a subject that you want to know or a phone call that is not clear, you are welcome to send a private message to Facebook~~<\/p>\n\n<p style=\"line-height:0.8\">Honway Facebook: <a href=\"https:\/\/lihi.cc\/LhR8c\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">https:\/\/www.facebook.com\/honwaygroup<\/a><\/p>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-ast-global-color-0-background-color has-background wp-element-button\" href=\"https:\/\/honwaygroup.com\/en\/honway-raw-materials\/\" target=\"_blank\" rel=\"noreferrer noopener\">We are Honway, by controlling our raw materials from the source, we ensure the quality of our products and offer you customized options.<\/a><\/div>\n<\/div>\n\n<ul class=\"wp-block-jetpack-sharing-buttons has-normal-icon-size jetpack-sharing-buttons__services-list\" id=\"jetpack-sharing-serivces-list\">\n\n\n\n<\/ul>\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p>You may be interested in&#8230;<\/p>\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\"><p>[wpb-random-posts]<\/p>\n<\/div>\n<\/div>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In product manufacturing, surface quality is a critical factor. Surface roughness refers to the tiny irregularities on a surface that affect functionality and durability, while smoothness describes the degree of surface flatness and light reflection. Roughness impacts gloss; the rougher the surface, the lower the gloss. To improve gloss, polishing materials are often used to remove minor irregularities, achieving a smoother surface. Understanding these concepts and effectively controlling roughness and gloss is key to ensuring high product quality, enhancing both performance and appearance.<\/p>\n","protected":false},"author":1,"featured_media":40076,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"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":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[792,795],"tags":[2276],"class_list":["post-40094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-applications","category-science-classroom","tag-surface-roughness-en"],"_links":{"self":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/40094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/comments?post=40094"}],"version-history":[{"count":0,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/posts\/40094\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media\/40076"}],"wp:attachment":[{"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/media?parent=40094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/categories?post=40094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/honwaygroup.com\/en\/wp-json\/wp\/v2\/tags?post=40094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}