{"id":9358,"date":"2026-03-25T16:33:23","date_gmt":"2026-03-25T15:33:23","guid":{"rendered":"https:\/\/relaunch.cotarko.de\/forge\/wedge-rolling\/"},"modified":"2026-05-15T12:22:12","modified_gmt":"2026-05-15T10:22:12","slug":"wedge-rolling","status":"publish","type":"page","link":"https:\/\/cotarko.de\/en\/forge\/wedge-rolling\/","title":{"rendered":"Wedge rolling"},"content":{"rendered":"
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Wedge rolling<\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Precise spline rolling for optimized transmission shaft blanks<\/span><\/h1>\n

Wedge rolling (cross wedge rolling) is our preferred process for the production of rotationally symmetrical workpieces with widely varying cross-sections. The blank is formed at 1100 \u00b0C to 1250 \u00b0C between two counter-rotating tools. <\/p>\n

This process is particularly material-saving, as it enables “near-net-shape” production and massively reduces the amount of flash.<\/p>\n

<\/h2>\n<\/div><\/div>
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\"Smeral-Querkeilwalze-Cotarko-Getriebewelle.\"<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>

Machinery: Smeral cross wedge rollers<\/h3>\n\n\n\n
\n

Number<\/p>\n

Roller diameter
\nForming force
\nClutch torque
\nmax. \u00d8 for rolling<\/p>\n<\/td>\n

\n

3 machines<\/p>\n

1,000 mm
\n13,000 kN
\n7,800 kN
\n100 mm<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Special features:<\/strong><\/b><\/p>\n

    \n
  • Forming with undercuts is possible in this process<\/li>\n
  • Distortion after machining (hardening) is low<\/li>\n
  • Homogeneous grain flow through whole shaft<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div>

    Technical highlights and capacities<\/span><\/h2>\n

    With three Smeral wedge rolling machines, we produce blanks for gear shafts that are characterized by an excellent, uninterrupted grain flow.<\/p>\n

      \n
    • \n

      Machine capacity:<\/b> 3 machines with a roller diameter of 1000 mm.<\/p>\n<\/li>\n

    • \n

      Performance:<\/b> Forming forces of up to 13,000 kN.<\/p>\n<\/li>\n

    • \n

      Dimensions:<\/b> Suitable for workpieces up to a diameter of 100 mm.<\/p>\n<\/li>\n<\/ul>\n<\/div><\/div>

      <\/div><\/div><\/div><\/div><\/div><\/div><\/section>
      <\/div>\"\"<\/div><\/div><\/div><\/div><\/div>

      Quality advantages for further processing<\/span><\/h2>\n

      The wedge rolling process used at Cotarko ensures an extremely homogeneous microstructure over the entire shaft length. A significant advantage for our customers is the low distortion during subsequent thermal treatment (hardening) after mechanical processing, which significantly increases process reliability in your production. <\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"Wedge rollingPrecise spline rolling for optimized transmission shaft blanks Wedge rolling (cross wedge rolling) is our preferred process for the production of rotationally symmetrical workpieces with widely varying cross-sections. The blank is formed at 1100 \u00b0C to 1250 \u00b0C between two counter-rotating tools. This process is particularly material-saving, as it enables “near-net-shape” production and massively...","protected":false},"author":1,"featured_media":0,"parent":9353,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9358","page","type-page","status-publish","hentry"],"yoast_head":"\nWedge rolling | Cotarko GmbH<\/title>\n<meta name=\"description\" content=\"Material-saving cross wedge rolling at Cotarko: Near-Net-Shape blanks for gear shafts with homogeneous fiber flow & low hardening distortion. 3 Smeral lines.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cotarko.de\/en\/forge\/wedge-rolling\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wedge rolling | Cotarko GmbH\" \/>\n<meta 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