Block Sawing:
Large Saws \/ Gang Saws: Cut into blanks 50\u2013200mm thick, with flatness controlled at \u00b10.5mm\/m<\/strong>.
CNC Wire Saws \/ Water Jets: Cut irregular shapes (bases, gantries), leaving an allowance of 3\u20135mm.
Reference Machining: Use gantry planers \/ milling machines to mill six faces, ensuring the perpendicularity of adjacent faces is \u22640.1mm\/m, leaving a grinding allowance of 0.3\u20130.5mm.
Secondary Aging: After rough machining, let it stand for 7\u201315 days to release cutting stress and prevent deformation after precision machining.<\/p>\n\n\n\n
III. Precision Machining: CNC Shaping (Foundation of Form and Position Accuracy)
CNC Milling \/ Grinding:
Equipment: High-precision gantry machining centers (positioning accuracy \u00b10.005mm), CNC guide rail grinders.
Processes: Milling slots, drilling holes, and contouring, controlling parallelism \/ perpendicularity to \u22640.02mm\/m; leave a grinding allowance of 0.05\u20130.1mm on guide rail surfaces.
Hole System Machining:
Drill holes with diamond bits, hole diameter tolerance H7\u2013H8; chamfer hole openings to prevent chipping.
Inserts: Steel sleeves \/ threaded sleeves are hot-fitted (stone preheated to 80\u2013100\u2103), using interference fit to prevent loosening.<\/p>\n\n\n\n
IV. Ultra-Precision Grinding and Polishing (Nanometer-Level Surface) V. Precision Inspection (All-Dimensional Quality Control) VI. Protection and Assembly (Long-term Stability) <\/p>","protected":false},"excerpt":{"rendered":" Desde los bloques en bruto en la mina hasta los componentes mec\u00e1nicos de precisi\u00f3n, el proceso central del granito es \u201cextracci\u00f3n \u2192 selecci\u00f3n de material \u2192 corte en bruto \u2192 envejecimiento \u2192 corte de precisi\u00f3n \u2192 conformado CNC \u2192 esmerilado y pulido \u2192 sistemas de agujeros \/ insertos \u2192 inspecci\u00f3n \u2192 protecci\u00f3n\u201d. La tensi\u00f3n y la precisi\u00f3n se controlan estrictamente a lo largo de todo el proceso, logrando en \u00faltima...<\/p>","protected":false},"author":1,"featured_media":2819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_analysis_target_kw":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-2818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/05\/\u5fae\u4fe1\u56fe\u7247_20260519154138_58_25.png",1007,715,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/es\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":220,"filter":"raw","cat_ID":35,"category_count":220,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/comments?post=2818"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2818\/revisions"}],"predecessor-version":[{"id":2820,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/posts\/2818\/revisions\/2820"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media\/2819"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/media?parent=2818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/categories?post=2818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/es\/wp-json\/wp\/v2\/tags?post=2818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Core: Step-by-step grinding final polishing, achieving a flatness of 1\u20132\u03bcm\/m and Ra\u22640.02\u03bcm.
Rough Grinding (#80\u2013#240): Silicon carbide grinding plates, removing tool marks, flatness \u226410\u03bcm\/m<\/strong>, Ra\u22641.6\u03bcm.
Semi-Precision Grinding (#400\u2013#800): Alumina grinding plates, refining the surface, flatness \u22645\u03bcm\/m<\/strong>, Ra\u22640.4\u03bcm.
Precision Grinding (#1200\u2013#3000): Diamond micropowder (6\u20132\u03bcm), flatness \u22642\u03bcm\/m<\/strong>, Ra\u22640.1\u03bcm.
Polishing (#5000 ): Chromium oxide \/ silicon dioxide polishing liquid, mirror effect, Ra\u22640.02\u03bcm.
Intelligent Control: Laser interferometers displacement sensors for real-time correction, dynamic pressure compensation to avoid local over-grinding.<\/p>\n\n\n\n
Flatness: Laser interferometer \/ flat crystal, \u22642\u03bcm\/m.
Dimensional Accuracy: Coordinate Measuring Machine (CMM), \u00b10.005mm.
Surface Roughness: White light interferometer, Ra\u22640.02\u03bcm.
Form and Position Tolerance: Perpendicularity \/ parallelism \u22640.01mm\/m<\/strong>.
Stability: Constant temperature (20\u00b10.5\u2103) inspection, 24-hour deformation \u22641\u03bcm<\/strong>.<\/p>\n\n\n\n
Cleaning: Ultrasonic anhydrous ethanol to remove dust and debris, drying to prevent moisture re-absorption.
Sealing: Penetrating protective agent (silane \/ siloxane), stain-proof and moisture-proof, without affecting precision.
Assembly: Bonding \/ bolting with metal parts (such as guide rails, lead screws), controlling assembly stress.
Key Parameters Overview
Cuadro
Process Core Equipment Precision Index Surface Roughness
Rough Cutting Diamond Large Saw \u00b10.5mm\/m Ra 12.5\u201325\u03bcm
CNC Shaping Gantry Machining Center \u00b10.02mm\/m Ra 1.6\u20133.2\u03bcm
Precision Grinding Intelligent Grinding Machine \u22642\u03bcm\/m Ra 0.05\u20130.1\u03bcm
Polishing Mirror Polishing Machine \u22641\u03bcm\/m Ra \u22640.02\u03bcm
Application Scenarios
Precision Measurement: Granite platforms, surface plates, square rulers.
Machine Tool Manufacturing: Guide rails, machine beds, gantries (high rigidity, low thermal deformation).
Semiconductor \/ Optics: Vacuum suction tables, optical reference bases.<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/05\/t04c53355b6a216f86c.jpg\")
<\/figure>\n\n\n\n