Use sintered diamond milling cutters, cutting in layers with a depth of 1\u20132mm per layer; strictly prohibit deep single cts.
Cutouts, Internal Corners: Use arc transitions; avoid right angles as they are extremely prone to chipping. Right angles on drawings can be modified to small radii.Cantilevers, Thin-Wall Structures: Coarse first, then finish; use low-speed feed to prevent stone breakage.
Leave a 0.5\u20131mm finishing allowance inner walls and sides of weight-reduction slots.<\/li>\n\n\n\n
Use 3-axis linkage on CNC gantry milling to machine anged surfaces, matching tool inclination.
Subsequent manual finishing grinding of angled surfaces to ensure flatness.<\/li>\n\n\n\n
Use diamond drill bits; pre-drill with a small drill bit first, then enlarge the hole to avoid chipping.
Counterbores and stepped holes are mill in layers.
Stainless steel threaded insert embedding: Apply glue inside the hole to fix it, ensuring perpendicularity and hole spacing accuracy, preventing loosening.<\/li>\n\n\n\n
Precision mill all irregular surfaces, grooves, and steps; leave an allowance of 0.2\u20130.5mm for grinding preparation.
Ensure parallelism, perpeularity, and hole spacing tolerance, generally \u00b10.02~\u00b10.05mm.<\/li>\n\n\n\n
Large Fat Surfaces: Mechanical grinding
Irregular grooves, angled surfaces, guide surfaces, inner sides: Manual hand-held grinding discs grinding sand for step-by-step precision grinding
Precision rade: Grade 0 for ordinary equipment, Grade 00\/000 for precision CMM\/semiconductor, micrometer-level flatness<\/li>\n<\/ol>\n\n\n\n
III. Tools and Cutting Parameters (Gen Factory Use)
Tools: Diamond milling cutters, diamond drill bits, ball-nose diamond cutters
Speed: 2000\u20133500 rd: Low-speed uniform feed, F300\u2013600
Cooling: Wet cooling (water flushing) to reduce dust, temperature, and prevent chipping
Dry cuttingy prohibited; dry cutting easily causes thermal cracking and chipping<\/p>\n\n\n\n
IV. Major Challenges in Irregular Machining & Key Points to Avoid Pitfalls Granite Equipment Base \u00b7 Full Process of Irregular Machining (Machine Tools \/ CMM \/ Semicose Practical Processes) Characteristics of Irregular Granite Bases: Non-standard shapes, irregular grooves, bosses, cantilevers, cutouts, chamfers, multi-surface perpndicularity, embedded threaded inserts, counterbores, wire holes, weight-reduction slots, irregular guide surfaces. High precision requirements, prone to chipping, difficult stress control. The followg provides…<\/p>","protected":false},"author":1,"featured_media":2735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_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-2732","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_20260512102306_44_25.png",1004,710,false],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/ar\/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":206,"filter":"raw","cat_ID":35,"category_count":206,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/comments?post=2732"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2732\/revisions"}],"predecessor-version":[{"id":2736,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/2732\/revisions\/2736"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media\/2735"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media?parent=2732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/categories?post=2732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/tags?post=2732"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Chipping at internal right angles
Solution:ly R3\u2013R5 fillets at internal corners or use small-diameter tools for corner cleaning; direct cutting of right angles is prohibited.
Breakage of cantilevers and thin walls
Use sl and layered cutting for roughing; ensure proper aging; handle with care during lifting.
Inconsistent accuracy of irregular surfaces
Unify the datum; grind the datum surface first, thenhe irregular structure.
Deformation after machining
Roughing must be followed by thermal aging; extend the holding time for irregular parts to 72 hours.
Skew of embded parts
Drill vertically, fix with adhesive, and recheck hole spacing after precision machining.
V. Complete Standard Process Flow (One Sentence)
Select dense granite blocks \u2192 Cutting \u2192 Rouging of shape\/slots\/holes\/lightening structures \u2192 Stress relief via constant-temperature thermal aging \u2192 Precision milling of irregular surfaces \u2192 Shaping with diamond tools \u2192 Manual precision grinding \u2192 Precisioinspection \u2192 Protective treatment \u2192 Finished product<\/p>\n\n\n\n![\"\"](\"https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/05\/\u5fae\u4fe1\u56fe\u7247_20260507163751_31_25.png\")
<\/figure>","protected":false},"excerpt":{"rendered":"