{"id":30000,"date":"2021-10-10T13:00:40","date_gmt":"2021-10-10T11:00:40","guid":{"rendered":"https:\/\/teknow.ehlers-kohfeld.de\/methode\/plasma-cutting\/"},"modified":"2021-10-20T19:14:25","modified_gmt":"2021-10-20T17:14:25","slug":"plasma-cutting","status":"publish","type":"methode","link":"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/","title":{"rendered":"Plasma cutting"},"content":{"rendered":"\n<p>With <strong>plasma fusion cutting<\/strong>, the workpiece is cut out with an electric arc. The arc is created by blowing a gas through a nozzle onto the workpiece. An electrode is located inside the nozzle and an arc is struck between this electrode and the electrically conductive workpiece. The arc ionizes the gas jet to form a plasma. Temperatures of 30,000 \u00b0 C are reached in the arc. The plasma jet melts the material in the kerf and at the same time blows out the liquid material.     <\/p>\n\n\n\n<p>The <strong>price<\/strong>for a workpiece is made up of a share for the cutting time (depending on the material, thickness, cutting length, number of grooves), the material price and the fixed costs. If there are several identical workpieces, the fixed costs are only incurred once, i.e. the price per workpiece decreases considerably, depending on the geometry. <\/p>\n\n\n\n<p><strong>Production examples<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"866\" height=\"577\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-30-mm.jpg\" alt=\"\" data-id=\"30121\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma-30-mm-2\/\" class=\"wp-image-30121\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-30-mm.jpg 866w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-30-mm-300x200.jpg 300w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-30-mm-768x512.jpg 768w\" sizes=\"auto, (max-width: 866px) 100vw, 866px\" \/><figcaption class=\"blocks-gallery-item__caption\"> 30mm S355J2 + N with mill skin <\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"252\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma3-30-mm.jpg\" alt=\"\" data-id=\"30123\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma3-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma3-30-mm-2\/\" class=\"wp-image-30123\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma3-30-mm.jpg 378w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma3-30-mm-300x200.jpg 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><figcaption class=\"blocks-gallery-item__caption\">  30mm S355J2 + N detail  <\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"252\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma4-30-mm.jpg\" alt=\"\" data-id=\"30125\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma4-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma4-30-mm-2\/\" class=\"wp-image-30125\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma4-30-mm.jpg 378w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma4-30-mm-300x200.jpg 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><figcaption class=\"blocks-gallery-item__caption\"> 30mm S355J2 + N blasted <\/figcaption><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Plasma cutting creates almost right-angled and largely post-processing-free cut surfaces. The heat input during cutting results in a hardening on the cut surface, but this is less than with oxy-fuel cutting. The formation of burrs and roughness of the cut edges increase with the sheet thickness, see the following pictures of the <strong>cut edges<\/strong>. We sandblast the surface of the sheet metal.   <\/p>\n\n\n\n<p><strong>Images of the cut edges<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"866\" height=\"577\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma2-30-mm.jpg\" alt=\"\" data-id=\"30129\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma2-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma2-30-mm-2\/\" class=\"wp-image-30129\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma2-30-mm.jpg 866w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma2-30-mm-300x200.jpg 300w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma2-30-mm-768x512.jpg 768w\" sizes=\"auto, (max-width: 866px) 100vw, 866px\" \/><figcaption class=\"blocks-gallery-item__caption\"> Cutting edge, un-blasted <\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"252\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma5-30-mm.jpg\" alt=\"\" data-id=\"30131\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma5-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma5-30-mm-2\/\" class=\"wp-image-30131\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma5-30-mm.jpg 378w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma5-30-mm-300x200.jpg 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><figcaption class=\"blocks-gallery-item__caption\"> Cutting edge steel, blasted <\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"252\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma6-30-mm.jpg\" alt=\"\" data-id=\"30133\" data-full-url=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma6-30-mm.jpg\" data-link=\"https:\/\/www.teknow.de\/en\/methode\/plasma-cutting\/plasma6-30-mm-2\/\" class=\"wp-image-30133\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma6-30-mm.jpg 378w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma6-30-mm-300x200.jpg 300w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><figcaption class=\"blocks-gallery-item__caption\"> Detail Steel 30mm S355J2 + N <\/figcaption><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p><strong>Procedure<\/strong><\/p>\n\n\n\n<p>Create a new workpiece and select &#8220;Plasma cutting&#8221; as the method. The only material available is steel S355J2 + N. Then you determine the strength.  <br>You draw the workpiece in the teknow Designer. White lines indicate the outer contour or openings. Yellow lines are interpreted as engraving lines. You can use the wizard to check that all design rules have been followed. The price for a single workpiece will be displayed after you have closed the designer. We create a production file from your drawing. We manufacture according to DIN ISO 2768-m \/ EN ISO 9013-342. White lines indicate the outer contour or openings. You can use the wizard to check that all design rules have been followed. The price for a single workpiece will be displayed after you have closed the designer. We create a production file from your drawing.    <\/p>\n\n\n\n<p><strong>Advantages of the procedure<\/strong><\/p>\n\n\n\n<p>\u2022 No tool costs<br>\u2022 Individual parts possible<br>\u2022 short production time<br>\u2022 flexible geometry can be produced<br>\u2022 medium and larger material thicknesses<br>\u2022 Smooth cuts, no need of post-processing<br>\u2022 Low heat input and material distortion<br>\u2022 high cutting speeds<br>\u2022 Cheaper than laser and water jet<\/p>\n\n\n\n<p><strong>Design rules<\/strong><\/p>\n\n\n\n<p>The smallest hole diameter must be at least equal to the selected material thickness, the smallest web width equal to twice the selected material thickness. Here, too, the wizard provides appropriate information (marked as a warning). If all rules are observed, the production takes place with tolerances according to DIN ISO 2768-m \/ EN ISO 9013-342. Here, too, the wizard provides appropriate information (marked as a warning). Burned holes are slightly conical with larger sheet metal thicknesses. This means that the diameter on the upper side of the sheet corresponds exactly to the specification, but the diameter on the underside of the sheet is smaller. If this is relevant for the component, the bore diameter should be selected 1 to 2 mm larger. If all rules are observed, production takes place with tolerances according to DIN EN ISO 9013.     <br>The metal sheets are mostly 2500 x 6000 mm\u00b2, larger workpieces lead to an error message.<\/p>\n\n\n\n<p><strong>Materials<\/strong><\/p>\n\n\n\n<p><strong>Steel<\/strong><\/p>\n\n\n\n<p>S355J2 + N (1.0577, ST 52-3) is an unalloyed, stronger standard structural steel for general applications. Very easy to weld. Rust protection is required outdoors.  <br>Available in thicknesses of 20, 25, 30, 35 mm.<\/p>\n\n\n\n<p><strong>Finally a look into the production:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"403\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine1.jpg\" alt=\"\" class=\"wp-image-30135\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine1.jpg 605w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine1-300x200.jpg 300w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" \/><\/figure>\n\n\n\n<p>A numerically controlled machine moves the cutting beam over the sheet.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"605\" height=\"403\" src=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine2.jpg\" alt=\"\" class=\"wp-image-30137\" srcset=\"https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine2.jpg 605w, https:\/\/www.teknow.de\/wp-content\/uploads\/2021\/10\/Plasma-Maschine2-300x200.jpg 300w\" sizes=\"auto, (max-width: 605px) 100vw, 605px\" \/><\/figure>\n\n\n\n<p>A plasma cutting machine when cutting workpieces.<\/p>\n","protected":false},"featured_media":28012,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_wp_applaud_exclude":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-30000","methode","type-methode","status-publish","format-standard","has-post-thumbnail","hentry"],"meta_box":{"method_format":[],"method_material":[],"method_art":[],"method_images":[]},"_links":{"self":[{"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/methode\/30000","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/methode"}],"about":[{"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/types\/methode"}],"version-history":[{"count":4,"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/methode\/30000\/revisions"}],"predecessor-version":[{"id":33582,"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/methode\/30000\/revisions\/33582"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/media\/28012"}],"wp:attachment":[{"href":"https:\/\/www.teknow.de\/en\/wp-json\/wp\/v2\/media?parent=30000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}