{"id":637,"date":"2026-04-28T13:11:11","date_gmt":"2026-04-28T11:11:11","guid":{"rendered":"https:\/\/mandler-engineering.de\/?p=637"},"modified":"2026-05-21T13:53:36","modified_gmt":"2026-05-21T11:53:36","slug":"polish","status":"publish","type":"post","link":"http:\/\/mandler-engineering.de\/en\/sic-politur\/","title":{"rendered":"SiC polish"},"content":{"rendered":"

PROJECT<\/h4>\n<\/div><\/div>

SiC polish for high-performance optics<\/h1>
Optical surface quality on one of the hardest engineering materials<\/h6>\n<\/div><\/div>
<\/div>

Silicon carbide (SiC) combines high stiffness, thermal stability, and low density \u2013 ideal properties for mirrors, structural components, and parts in space optics, semiconductor manufacturing, and lithography. The challenge lies in polishing: SiC surfaces must be comparable to highly polished glass \u2013 using a material that pushes conventional polishing methods to their limits.<\/p>\n<\/div><\/div><\/div><\/div>

\"\"<\/div><\/div><\/div><\/div><\/div><\/div><\/section>
\n
\n 01<\/span>\n Starting point<\/span>\n <\/div>\n

Challenge<\/h3>\n
<\/div>\n

The extreme hardness and brittleness of SiC make machining particularly challenging. Conventional polishing methods lead to long process times, high tool wear, and limited process stability. At the same time, sub-nanometre roughness values, the highest form accuracy, and minimal subsurface damage are demanded.<\/p>\n<\/div><\/div><\/div><\/div>

\n
\n 02<\/span>\n OUR APPROACH<\/span>\n <\/div>\n

Solution<\/h3>\n
<\/div>\n

The VGP process, in combination with the PRECESS polishing technique, enables controlled material removal through uniform pressure distribution and defined kinematics. The result: optical surface quality on SiC \u2014 reproducible, efficient, and with significantly reduced processing times.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/section>

\n
\n 03<\/span>\n Added value<\/span>\n <\/div>\n

Advantages<\/h3>\n
\n
\n
\u2713<\/div>\n
\n Uniform removal<\/strong>\n Uniform pressure distribution for constant surface quality over the entire component.<\/span>\n <\/div>\n <\/div>\n
\n
\u2713<\/div>\n
\n Process stable<\/strong>\n Reproducible results through stable, gravity-based process control.<\/span>\n <\/div>\n <\/div>\n
\n
\u2713<\/div>\n
\n Cost-effective<\/strong>\n Optimised tool wear reduces process costs.<\/span>\n <\/div>\n <\/div>\n
\n
\u2713<\/div>\n
\n Geometryflexible<\/strong>\n Processing complex shapes including aspheres.<\/span>\n <\/div>\n <\/div>\n <\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/section>","protected":false},"excerpt":{"rendered":"PROJECT SiC Polishing for High-Performance Optics Optical surface quality on one of the hardest technical materials Silicon carbide (SiC) combines high rigidity, thermal stability, and low density \u2014 ideal properties for mirrors, structural components, and components in space optics, semiconductor manufacturing, and lithography. The challenge lies in the polishing: SiC surfaces must be comparable to highly polished glass \u2014 with a material that conventional polishing processes...","protected":false},"author":2,"featured_media":645,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[4,11],"tags":[],"class_list":["post-637","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-praezisionsoptik","category-prozessoptimierung"],"acf":[],"_links":{"self":[{"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/posts\/637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/comments?post=637"}],"version-history":[{"count":7,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/posts\/637\/revisions"}],"predecessor-version":[{"id":703,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/posts\/637\/revisions\/703"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/media\/645"}],"wp:attachment":[{"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/media?parent=637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/categories?post=637"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/mandler-engineering.de\/en\/wp-json\/wp\/v2\/tags?post=637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}