{"id":22460,"date":"2024-01-12T16:09:35","date_gmt":"2024-01-12T08:09:35","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=22460"},"modified":"2024-01-12T16:11:50","modified_gmt":"2024-01-12T08:11:50","slug":"three-important-parameters-to-consider-when-selecting-an-end-mill","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/pl\/three-important-parameters-to-consider-when-selecting-an-end-mill\/","title":{"rendered":"Trzy wa\u017cne parametry, kt\u00f3re nale\u017cy wzi\u0105\u0107 pod uwag\u0119 przy wyborze frezu palcowego"},"content":{"rendered":"
Wybieraj\u0105c frezy palcowe, cz\u0119sto bierzemy pod uwag\u0119 tylko specyfikacje lub twardo\u015b\u0107, ale informacje dotycz\u0105ce zakupu frez\u00f3w palcowych nie ograniczaj\u0105 si\u0119 do tych dw\u00f3ch aspekt\u00f3w. Dzieje si\u0119 tak dlatego, \u017ce wielu sprzedawcom brakuje fachowej wiedzy na temat narz\u0119dzi skrawaj\u0105cych, a personelowi technicznemu mo\u017ce brakowa\u0107 wiedzy teoretycznej na temat narz\u0119dzi skrawaj\u0105cych i mo\u017ce nie wiedzie\u0107, jaki typ narz\u0119dzia jest odpowiedni do obr\u00f3bki okre\u015blonych materia\u0142\u00f3w. Niestety ten model zakup\u00f3w sta\u0142 si\u0119 g\u0142\u00f3wnym nurtem. Wielu producent\u00f3w narz\u0119dzi, chc\u0105c sprosta\u0107 potrzebom r\u00f3\u017cnych klient\u00f3w, koncentruje si\u0119 na sprzeda\u017cy narz\u0119dzi og\u00f3lnego przeznaczenia. Jednak\u017ce taki wyb\u00f3r mo\u017ce nie zapewni\u0107 dobrej efektywno\u015bci ekonomicznej przedsi\u0119biorstwom zajmuj\u0105cym si\u0119 obr\u00f3bk\u0105 skrawaniem. Dzi\u015b podzielimy si\u0119 z Wami niekt\u00f3rymi z najwa\u017cniejszych parametr\u00f3w geometrycznych frezu walcowo-czo\u0142owego.<\/p>\n

First, let’s take a look at\u00a0the components of an end mill, as shown in the diagram below:\u00a0<\/strong><\/p>\n

\"\"<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

The geometric angles to consider when selecting an end mill:<\/h1>\n

(1)Lead angle (with positive and negative lead angle options, as shown in the diagram)<\/h2>\n

\"\"<\/p>\n

 <\/p>\n

(2)back angle<\/h2>\n

\"\"<\/p>\n

Function: Primarily reduces friction between the back face and the workpiece.<\/p>\n

Applicable area of back angle of end mill<\/h3>\n

When rough milling or processing workpieces with high strength and hardness, a smaller back angle should be selected to ensure sufficient strength of the cutting edge. When machining workpieces with high plasticity or elasticity, a larger back angle should be chosen to prevent excessive friction contact between the back face and the workpiece due to the elastic recovery of the machined surface.<\/p>\n

(3)Spiral angle (it is essentially the helix angle of an end mill or a face mill, as shown in the diagram)<\/h2>\n

\"\"<\/p>\n

Characteristics of the helix angle of an end mill:<\/p>\n

A smaller helix angle results in a larger cutting torque and less axial pulling force.<\/p>\n

A larger helix angle leads to a greater cutting torque and more axial pulling force.<\/p>\n

Comparison between a 30-degree and a 45-degree helix angle for an end mill:<\/p>\n

A 30-degree helix angle offers better chip evacuation performance and better rigidity, but it has a larger lead angle, resulting in less sharp cutting edges. It generates more resistance and is suitable for low-speed, high-feed machining.<\/p>\n

A 45-degree helix angle provides sharp cutting edges but has inferior chip evacuation performance and lower rigidity. However, with the same number of cutting edges, it offers more space for chip removal. The cutting edges are sharper, making it suitable for high-speed, low-feed machining.<\/p>\n

For cutting materials like high-temperature alloys and stainless steel that tend to be sticky, a 45-degree helix angle is more appropriate. On the other hand, a 30-degree helix angle is better suited for cutting materials like steel and cast iron.<\/p>\n

2.Tooth number<\/h1>\n

\"\"<\/p>\n

It can be seen from the above diagram:<\/p>\n

The more cutting edges, the less smooth the chip evacuation, but the tool rigidity is stronger, resulting in better surface roughness.<\/p>\n

The fewer cutting edges, the smoother the chip evacuation, but the tool rigidity decreases, leading to poorer surface roughness.<\/p>\n

 <\/p>\n

Applications for end mills with different numbers of cutting edges:<\/p>\n

Two edges: Suitable for machining keyways.<\/p>\n

Three edges: Suitable for machining aluminum, plastic, and electrical wood.<\/p>\n

Four edges: Versatile, mainly used for machining steel. For factories that frequently process different materials, a four-edge end mill is ideal to reduce tool costs. For factories with a relatively uniform material, choosing the appropriate number of cutting edges is beneficial for improving cutting efficiency and machining quality.<\/p>\n

 <\/p>\n

3.The geometric angles to be mastered during the sharpening of an m\u0142yn ko\u0144cowy<\/a><\/h1>\n

(1)First end face back angle<\/h2>\n

\"\"<\/p>\n

Function: To prevent friction between the end face and the workpiece bottom surface, enhancing the sharpness of the end face cutting edge.<\/p>\n

(2)Second end face back angle<\/h2>\n

\"\"<\/p>\n

Function: Facilitates the evacuation of chips and debris.<\/p>\n

(3)End face concave angle<\/h2>\n

\"\"<\/p>\n

Function: Prevents the end mill end face from colliding with the workpiece bottom surface and facilitates chip evacuation.<\/p>\n

(4)Axial relief angle<\/h2>\n

\"\"<\/p>\n

 <\/p>\n

\"m\u0142yn<\/p>\n

The above information provides an overview of several important parameters to consider when selecting end mills. We hope this can be helpful for you.<\/p><\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

When selecting end mills, we often only consider the specifications or hardness, but the procurement information for end mills is not limited to these two aspects. This is because many salespeople lack professional knowledge about cutting tools, and technical personnel may lack theoretical knowledge about cutting tools and may not know which type of tool…<\/p>","protected":false},"author":2,"featured_media":22465,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2024\/01\/\u56fe\u72476.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/posts\/22460"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/comments?post=22460"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/posts\/22460\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/media\/22465"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/media?parent=22460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/categories?post=22460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/pl\/wp-json\/wp\/v2\/tags?post=22460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}