{"id":2849,"date":"2026-07-12T11:20:59","date_gmt":"2026-07-12T11:20:59","guid":{"rendered":"https:\/\/likundacnc.com\/cnc%e5%8a%a0%e5%b7%a5%e9%9b%b6%e4%bb%b6%e5%a6%82%e4%bd%95%e9%80%89%e6%8b%a9%e5%90%88%e9%80%82%e7%9a%84%e8%a1%a8%e9%9d%a2%e5%a4%84%e7%90%86%e6%96%b9%e5%bc%8f%ef%bc%9f\/"},"modified":"2026-07-29T06:31:01","modified_gmt":"2026-07-29T06:31:01","slug":"how-to-choose-cnc-surface-treatment","status":"publish","type":"post","link":"https:\/\/likundacnc.com\/en\/how-to-choose-cnc-surface-treatment\/","title":{"rendered":"How to Choose the Right Surface Treatment for CNC Machined Parts?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Why Do CNC Parts Need the Right Surface Treatment?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CNC machining can achieve high dimensional accuracy, but during actual operation, machined parts often need to withstand different working environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Outdoor equipment requires corrosion protection.<\/li>\n\n\n\n<li>Precision machinery requires improved wear resistance.<\/li>\n\n\n\n<li>Appearance components require enhanced surface quality.<\/li>\n\n\n\n<li>Moving components require reduced friction.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, selecting the appropriate surface treatment process can further improve part performance, reliability, and service life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Surface treatment mainly affects:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Corrosion resistance<\/li>\n\n\n\n<li>Surface hardness<\/li>\n\n\n\n<li>Friction performance<\/li>\n\n\n\n<li>Appearance quality<\/li>\n\n\n\n<li>Service life<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Selecting Surface Treatment Based on Material Type<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Different metal materials have different properties, so the surface treatment process should be selected accordingly.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-ec20b4d\" data-block-id=\"ec20b4d\"><style>.stk-ec20b4d .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-ec20b4d .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-ec20b4d .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1832\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machining-multi-metal-material-blank-milling-scene.webp\" width=\"1200\" height=\"900\" alt=\"Vertical CNC machining center milling metal blanks with various raw materials\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machining-multi-metal-material-blank-milling-scene.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machining-multi-metal-material-blank-milling-scene-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machining-multi-metal-material-blank-milling-scene-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machining-multi-metal-material-blank-milling-scene-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">1) Surface Treatment Options for Aluminum Alloy Parts<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminum alloy is one of the most commonly used materials in CNC machining.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Key advantages include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Lightweight<\/li>\n\n\n\n<li>Excellent machinability<\/li>\n\n\n\n<li>Superior surface finishing capability<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, aluminum alloy parts are widely used in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automation equipment<\/li>\n\n\n\n<li>Precision structural components<\/li>\n\n\n\n<li>Electronic housings<\/li>\n\n\n\n<li>Industrial machinery parts<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Recommended Surface Treatments for Aluminum Alloy<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Anodizing<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Anodizing is one of the most common surface treatments for aluminum CNC parts.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-1ef875c\" data-block-id=\"1ef875c\"><style>.stk-1ef875c .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-1ef875c .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-1ef875c .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1831\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/full-range-anodized-aluminum-cnc-housing-bracket-parts.webp\" width=\"1200\" height=\"900\" alt=\"Color anodized aluminum CNC housings, brackets and custom precision components\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/full-range-anodized-aluminum-cnc-housing-bracket-parts.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/full-range-anodized-aluminum-cnc-housing-bracket-parts-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/full-range-anodized-aluminum-cnc-housing-bracket-parts-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/full-range-anodized-aluminum-cnc-housing-bracket-parts-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Advantages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improves corrosion resistance<\/li>\n\n\n\n<li>Increases surface hardness<\/li>\n\n\n\n<li>Maintains dimensional stability<\/li>\n\n\n\n<li>Provides various color options<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Common colors:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Black<\/li>\n\n\n\n<li>Silver<\/li>\n\n\n\n<li>Blue<\/li>\n\n\n\n<li>Red<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Appearance components<\/li>\n\n\n\n<li>Precision structural parts<\/li>\n\n\n\n<li>Aluminum CNC machined parts<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">Sand Blasting + Anodizing<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">This combination is widely used for industrial products requiring high appearance quality.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-8caa0ae\" data-block-id=\"8caa0ae\"><style>.stk-8caa0ae .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-8caa0ae .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-8caa0ae .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1830\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/aluminum-cnc-flange-parts-sandblasting-surface-finishing.webp\" width=\"1200\" height=\"900\" alt=\"Sandblasting aluminum flange and cylindrical CNC parts for matte surface finish\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/aluminum-cnc-flange-parts-sandblasting-surface-finishing.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/aluminum-cnc-flange-parts-sandblasting-surface-finishing-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/aluminum-cnc-flange-parts-sandblasting-surface-finishing-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/aluminum-cnc-flange-parts-sandblasting-surface-finishing-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Process:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CNC Machining<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sand Blasting<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anodizing<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Results:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Removes machining marks<\/li>\n\n\n\n<li>Creates a uniform matte surface<\/li>\n\n\n\n<li>Improves product appearance and texture<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Applications:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-end equipment housings<\/li>\n\n\n\n<li>Precision mechanical parts<\/li>\n\n\n\n<li>Automation equipment components<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2) Surface Treatment Options for Stainless Steel Parts<\/h3>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-d042c33\" data-block-id=\"d042c33\"><style>.stk-d042c33 .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-d042c33 .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-d042c33 .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1829\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machined-stainless-steel-shaft-thread-parts.webp\" width=\"1200\" height=\"900\" alt=\"Natural finish stainless steel turn-milled shafts, sleeves and threaded flange parts\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machined-stainless-steel-shaft-thread-parts.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machined-stainless-steel-shaft-thread-parts-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machined-stainless-steel-shaft-thread-parts-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cnc-machined-stainless-steel-shaft-thread-parts-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Stainless steel features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High strength<\/li>\n\n\n\n<li>Excellent corrosion resistance<\/li>\n\n\n\n<li>High temperature resistance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Common applications include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Medical equipment<\/li>\n\n\n\n<li>Food processing machinery<\/li>\n\n\n\n<li>Industrial equipment<\/li>\n\n\n\n<li>High-performance structural components<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Common Stainless Steel Surface Treatments<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Polishing<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Purpose:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improves surface smoothness<\/li>\n\n\n\n<li>Enhances appearance quality<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Appearance-critical components<\/li>\n\n\n\n<li>Precision equipment parts<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Passivation<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Purpose:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Removes surface contaminants<\/li>\n\n\n\n<li>Improves corrosion resistance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Medical components<\/li>\n\n\n\n<li>Precision stainless steel parts<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Electroplating<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">By adding a protective metal layer, electroplating improves:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wear resistance<br>Surface performance<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Special industrial applications<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3) Surface Treatment Options for Steel Parts<\/h3>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-bee67af\" data-block-id=\"bee67af\"><style>.stk-bee67af .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-bee67af .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-bee67af .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1828\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/black-hard-anodized-aluminum-cnc-structure-parts.webp\" width=\"1200\" height=\"900\" alt=\"Black hard anodized aluminum CNC housings, brackets and custom components\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/black-hard-anodized-aluminum-cnc-structure-parts.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/black-hard-anodized-aluminum-cnc-structure-parts-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/black-hard-anodized-aluminum-cnc-structure-parts-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/black-hard-anodized-aluminum-cnc-structure-parts-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Steel materials provide:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High strength<\/li>\n\n\n\n<li>Excellent mechanical properties<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">However, ordinary steel is more vulnerable to environmental effects.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, protective surface treatments are usually required.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Common Steel Surface Treatments<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Black Oxide Treatment<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improves appearance<\/li>\n\n\n\n<li>Enhances rust protection<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Applications:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanical components<\/li>\n\n\n\n<li>Industrial structural parts<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Nickel Plating \/ Chrome Plating<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Advantages:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improves wear resistance<\/li>\n\n\n\n<li>Enhances corrosion protection<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High-load components<\/li>\n\n\n\n<li>Moving mechanical parts<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Heat Treatment<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Heat treatment changes the internal structure of metal to improve:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hardness<\/li>\n\n\n\n<li>Strength<\/li>\n\n\n\n<li>Wear resistance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Applications:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Shaft components<\/li>\n\n\n\n<li>Gear parts<\/li>\n\n\n\n<li>High-load mechanical components<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. Selecting Surface Treatment Based on Operating Environment<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Besides material type, the working environment is also a critical factor.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-fa01db4\" data-block-id=\"fa01db4\"><style>.stk-fa01db4 .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-fa01db4 .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-fa01db4 .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1827\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/large-metal-parts-powder-coating-spraying-workshop.webp\" width=\"1200\" height=\"900\" alt=\"Powder coating corrosion protection for large CNC metal structures\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/large-metal-parts-powder-coating-spraying-workshop.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/large-metal-parts-powder-coating-spraying-workshop-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/large-metal-parts-powder-coating-spraying-workshop-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/large-metal-parts-powder-coating-spraying-workshop-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Normal Industrial Environment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Examples:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Automation equipment<\/li>\n\n\n\n<li>General machinery<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anodizing<\/li>\n\n\n\n<li>Sand blasting<\/li>\n\n\n\n<li>Basic protective coating<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Moisture or Corrosive Environment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Examples:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Outdoor equipment<\/li>\n\n\n\n<li>Chemical environments<\/li>\n\n\n\n<li>Marine applications<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stainless steel materials<\/li>\n\n\n\n<li>Anti-corrosion coating<\/li>\n\n\n\n<li>Electroplating<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">High-Friction Environment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Examples:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Moving components<\/li>\n\n\n\n<li>Transmission systems<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hardening treatment<\/li>\n\n\n\n<li>Chrome plating<\/li>\n\n\n\n<li>Heat treatment<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. <strong>Selecting Surface Treatment Based on Appearance Requirements<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modern industrial products focus not only on performance but also on appearance quality.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Matte Industrial Appearance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sand Blasting<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Premium surface texture<\/li>\n\n\n\n<li>Reduced fingerprint visibility<\/li>\n\n\n\n<li>Uniform appearance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Colored Surface Finish<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Anodizing<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiple color options<\/li>\n\n\n\n<li>Stable surface performance<\/li>\n\n\n\n<li>Maintains metallic appearance<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">High Gloss Finish<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Recommended:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Polishing<\/li>\n\n\n\n<li>Electroplating<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Features:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High surface brightness<\/li>\n\n\n\n<li>Excellent visual appearance<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4. How Does Surface Treatment Affect CNC Accuracy?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For precision components, surface treatment affects not only appearance but also dimensional accuracy.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-0bdab87\" data-block-id=\"0bdab87\"><style>.stk-0bdab87 .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-0bdab87 .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-0bdab87 .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1826\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cmm-coordinate-measuring-gold-anodized-aluminum-housing.webp\" width=\"1200\" height=\"900\" alt=\"CMM dimensional inspection of gold anodized aluminum CNC housings\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cmm-coordinate-measuring-gold-anodized-aluminum-housing.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cmm-coordinate-measuring-gold-anodized-aluminum-housing-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cmm-coordinate-measuring-gold-anodized-aluminum-housing-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/cmm-coordinate-measuring-gold-anodized-aluminum-housing-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Therefore, manufacturing engineers must consider:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Surface treatment thickness<\/li>\n\n\n\n<li>Critical dimensions<\/li>\n\n\n\n<li>Assembly tolerances<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For precision assembly components, machining dimensions should include proper allowance for surface treatment thickness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Professional CNC manufacturers consider the complete manufacturing sequence:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CNC Machining<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dimensional Control<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Surface Treatment<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2193<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Final Inspection<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This ensures every component meets engineering specifications.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Comprehensive Manufacturing Capability of Qingdao Likunda CNC Machinery Co., Ltd.<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Qingdao Likunda CNC Machinery Co., Ltd. specializes in precision CNC machining and provides complete manufacturing solutions based on customer requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our services include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CNC Turning<\/li>\n\n\n\n<li>CNC Milling<\/li>\n\n\n\n<li>Turn-Mill Compound Machining<\/li>\n\n\n\n<li>Multi-Axis Machining<\/li>\n\n\n\n<li>Precision Inspection<\/li>\n\n\n\n<li>Surface Treatment Support<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">According to different materials and application requirements, we provide surface treatment solutions including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aluminum Anodizing<\/li>\n\n\n\n<li>Sand Blasting<\/li>\n\n\n\n<li>Electroplating<\/li>\n\n\n\n<li>Protective Coating<\/li>\n\n\n\n<li>Heat Treatment<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">With a complete manufacturing process, we provide one-stop solutions from raw materials and precision machining to surface finishing.<\/p>\n\n\n\n<div class=\"wp-block-stackable-image stk-block-image stk-block stk-587891b\" data-block-id=\"587891b\"><style>.stk-587891b .stk-img-wrapper{aspect-ratio:16\/9 !important;height:auto !important;}@media screen and (max-width:999px){.stk-587891b .stk-img-wrapper{height:auto !important;}}@media screen and (max-width:689px){.stk-587891b .stk-img-wrapper{height:auto !important;}}<\/style><figure><span class=\"stk-img-wrapper stk-image--shape-stretch\"><img loading=\"lazy\" decoding=\"async\" class=\"stk-img wp-image-1817\" src=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/surface-roughness-tester-aluminum-cnc-parts-inspection.webp\" width=\"1200\" height=\"900\" alt=\"Surface roughness testing of CNC aluminum housings with Ra\/Rz measurement\" srcset=\"https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/surface-roughness-tester-aluminum-cnc-parts-inspection.webp 1200w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/surface-roughness-tester-aluminum-cnc-parts-inspection-300x225.webp 300w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/surface-roughness-tester-aluminum-cnc-parts-inspection-1024x768.webp 1024w, https:\/\/likundacnc.com\/wp-content\/uploads\/2026\/07\/surface-roughness-tester-aluminum-cnc-parts-inspection-768x576.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/span><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting the right surface treatment requires comprehensive consideration of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Material type<\/li>\n\n\n\n<li>Operating environment<\/li>\n\n\n\n<li>Performance requirements<\/li>\n\n\n\n<li>Appearance requirements<\/li>\n\n\n\n<li>Cost factors<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A professional CNC machining supplier needs not only advanced equipment but also extensive process experience and manufacturing expertise to provide the most suitable solution for customers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qingdao Likunda CNC Machinery Co., Ltd. is committed to providing high-precision and reliable metal component manufacturing services for global customers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>After CNC machining is completed, metal parts usually require suitable surface treatment based on material type, operating environment, and functional requirements.<\/p>\n<p>Different surface treatment processes directly affect corrosion resistance, wear resistance, surface appearance, and service life.<\/p>\n<p>This article explains how to select the most suitable surface treatment solution for different materials such as aluminum alloy, stainless steel, and steel, as well as different industrial applications.<\/p>\n","protected":false},"author":1,"featured_media":2655,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[167,168,169,170,171,172],"class_list":["post-2849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-surface-treatment","tag-cnc","tag-168","tag-169","tag-170","tag-171","tag-172"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"Learn about common CNC part surface treatments including anodizing, electroplating, sand blasting, coating, and heat treatment to improve corrosion resistance, durability, and appearance quality.\" \/>\n\t<meta name=\"robots\" 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