The primary profile is a derived curve obtained from the values of the analysis methods for surfaces<\/a>.<\/p>\n The primary profile is therefore very close to the actual waviness<\/a> and roughness<\/a> of a surface<\/a>. Technically, the primary profile is required to determine further parameters, in particular the roughness and waviness. <\/p>\n The primary profile is determined using optical or tactile methods<\/a>. It forms a calculated mean value of the structure determined over an area. <\/p>\n Defining a specific curve provides the basis for further recording of a surface structure.<\/p>\n The profile is a mixture of the roughness<\/a> and the waviness<\/a> of a surface. These two parameters can be separated from each other using mathematical methods. <\/p>\n Put simply, the roughness structure is a periodically recurring deviation from a center line.<\/p>\n The ripple, on the other hand, is this centerline itself. It can be very irregular, with high mountains, plains and deep valleys alternating non-periodically. <\/p>\n The determination of a roughness depth<\/a> via the primary profile requires the prior separation of the characteristic roughness structure from the waviness.<\/p>\n The roughness curve is then precisely determined again using tactile or optical methods. The most important characteristic value when assessing the surface is the “average roughness depth”. <\/p>\n This is produced as a statistical mean value from the roughness valleys. The same procedure can also be used to determine roughness peaks. <\/p>\n The roughness structure of a surface<\/a> is initially a value-free parameter. Where a frictional connection is required, for example, a rough surface structure is definitely welcome. A surface measurement<\/a> is carried out using tactile measurement technology<\/a>. <\/p>\n Where the smoothest possible surface structures are required, the roughness analysis of the primary profile provides an outlook on the further processing steps required.<\/p>\n Grinding, polishing and lapping are possible methods for smoothing an undesirably rough surface structure. These machining processes belong to the group of “tool-free machining processes”. <\/p>\n Their use is always quite complex and expensive, which is why the desired surface structure should be achieved as early as possible during rolling or finishing.<\/p>\n","protected":false},"excerpt":{"rendered":" Primary profile as the basis for surface roughness and waviness The primary profile is a derived curve obtained from the values of the analysis methods for surfaces. The primary profile is therefore very close to the actual waviness and roughness of a surface. Technically, the primary profile is required to determine further parameters, in particular […]<\/p>\n","protected":false},"author":1,"featured_media":12508,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"class_list":["post-12506","encyclopedia","type-encyclopedia","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/encyclopedia\/12506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/media\/12508"}],"wp:attachment":[{"href":"https:\/\/3dimetik.de\/en\/wp-json\/wp\/v2\/media?parent=12506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Determination of the primary profile<\/h2>\n
Characteristic values from the primary profile<\/h2>\n
Roughness measurement using the primary profile<\/h2>\n
Benefits of surface roughness<\/h2>\n