{"id":89,"date":"2026-04-07T07:46:47","date_gmt":"2026-04-07T07:46:47","guid":{"rendered":"https:\/\/www.jundro.com\/?p=89"},"modified":"2026-04-07T08:50:55","modified_gmt":"2026-04-07T08:50:55","slug":"macor-machining","status":"publish","type":"post","link":"https:\/\/www.jundro.com\/es\/macor-machining\/","title":{"rendered":"Macor Machining Guide: Processes, Tips & Best Practices"},"content":{"rendered":"\n

Macor machinable ceramic is one of the main materials we process. Its unique machinability makes it different from other engineering ceramics. Compared with other materials, Macor makes it easier for us to achieve high-precision tolerances and complex structures.<\/p>\n\n\n\n

Although we know that Macor can be machined directly using carbide tools, compared with metal, there are still slight differences.<\/p>\n\n\n\n

For example, when we use a piece of Macor plate and drill a hole with carbide tools, there will still be slight chipping at the edge of the through hole, while this phenomenon does not occur in metal materials.<\/p>\n\n\n\n

Tool Selection<\/h2>\n\n\n\n

In terms of tool selection, we usually use a combination of diamond grinding bits and carbide milling cutters.
Diamond tools are used for rough machining, while carbide tools are used for finishing.<\/p>\n\n\n\n

By using this method, we can significantly improve machining efficiency and product quality, while also reducing processing cost.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Machine Selection<\/h2>\n\n\n\n

At present, our machining equipment includes 3-axis, 4-axis, and 5-axis CNC machines.
Most drawing tasks are completed using 3-axis and 4-axis machines. For complex structures, such as irregular shapes, angled features, and ultra-high precision ceramic parts, 5-axis CNC machining is required.<\/p>\n\n\n\n

Parameter Settings<\/h2>\n\n\n\n

We usually set the spindle speed between 15,000\u201318,000 rpm, and the feed rate at 2000 mm\/min.
However, please note that these parameters are not fixed and should be adjusted according to the part structure.<\/p>\n\n\n\n

Coolant Selection<\/h2>\n\n\n\n

We usually choose water-soluble coolant.
Oil-based cutting fluid tends to cause tool sticking, which is not suitable for machining.<\/p>\n\n\n\n

Workholding for Macor<\/h2>\n\n\n\n

Workholding is very important. Do not apply excessive clamping force, as this is one of the most common mistakes made by beginners when machining Macor.<\/p>\n\n\n\n

We usually use a vise, paraffin wax, or adhesive, depending on the product structure.<\/p>\n\n\n\n

Internal Thread Machining<\/h2>\n\n\n\n

Macor is widely used, and internal threads and micro-holes are concerns in most engineering applications.<\/p>\n\n\n\n

Based on our years of machining experience, we conclude that internal threads in Macor are best controlled above M2 for reliable and practical use.
Although we can achieve threads as small as M1.4, due to the material strength, their practicality is low.<\/p>\n\n\n\n

In addition, to prevent chipping at the thread entrance, we usually add a chamfer at the opening.<\/p>\n\n\n\n

Surface Roughness<\/h2>\n\n\n\n

For customers with surface roughness requirements, we will adjust the process accordingly.<\/p>\n\n\n\n

For Ra \u2264 0.1 \u03bcm, we achieve it by using grinding wheels with finer grit size.
For higher surface requirements, we use polishing to meet customer needs.<\/p>\n\n\n\n

At present, the best surface roughness we can achieve on Macor parts is Ra 0.03 \u03bcm.<\/p>\n\n\n\n

Micro-holes, Wall Thickness, Slot Width<\/h2>\n\n\n\n

For these structural features:<\/p>\n\n\n\n

    \n
  • Minimum hole diameter: 0.05 mm<\/li>\n\n\n\n
  • Minimum slot width: 0.2 mm<\/li>\n\n\n\n
  • Minimum wall thickness: 0.05 mm<\/li>\n<\/ul>\n\n\n\n

    (When the wall thickness is this thin, extra care must be taken during handling and use, as it is very fragile.)his thin, extra care must be taken during handling and transportation, as the parts are extremely fragile.)<\/p>\n\n\n\n

    Why do scratches easily occur?<\/h2>\n\n\n\n

    The root cause is that the material hardness is relatively low. During processing, the ceramic surface is easily scratched, forming fine marks.
    It is recommended to reduce friction with other objects during production and ensure proper packaging protection during handling and transportation.<\/p>\n\n\n\n

    What is the maximum size you can machine?<\/h2>\n\n\n\n

    At present, the largest Macor size we can process is 330 \u00d7 330 \u00d7 57 mm, because this is the maximum size produced by Corning.<\/p>\n\n\n\n

    Do you only support custom parts?<\/h2>\n\n\n\n

    No, we also support the production of Macor tubes, blocks, and plates. However, we focus more on high-precision machining.
    We have advantages in prototyping and small-to-medium batch production.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Complete Macor machining guide covering tools, CNC parameters, threading, surface finish, and precision tips for high-performance ceramic parts.<\/p>\n","protected":false},"author":1,"featured_media":473,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-89","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-quality-process"],"yoast_head":"\nMacor Machining Guide: Tools, Parameters & Precision Tips<\/title>\n<meta name=\"description\" content=\"Complete Macor machining guide covering tools, CNC parameters, threading, surface finish, and precision tips for high-performance ceramic parts.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jundro.com\/es\/macor-machining\/\" \/>\n<meta property=\"og:locale\" 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