欧美人妻精品一区二区三区99,中文字幕日韩精品内射,精品国产综合成人亚洲区,久久香蕉国产线熟妇人妻

The helix angle can be divided into various options such as 30°, 45°, 50°, and so on, offering a diverse range of choices. Due to its advantages in terms of swift, smooth, and efficient cutting, as well as a broad range of applications, the helical-edged end mill has gained widespread use in milling operations compared to the straight-edged counterpart. Now, let’s delve into how to differentiate and use them.

What You Need to Know about Helix Angle of End Mills 1

The Function of the Helix Angle

The larger the helix angle of an end mill, the longer the contact length between the workpiece and the cutting edge. This can reduce the load borne by the cutting edge per unit length, thereby extending the tool life. However, at the same time, cutting resistance increases, so it is necessary to consider using a tool holder with high clamping rigidity.

 

Relationship between Helix Angle and Other Elements

Helix Angle and Cutting Edge Length

For end mills with a small helix angle, the cutting edge is shorter (length indicated by the blue line).

What You Need to Know about Helix Angle of End Mills 2

For end mills with a large helix angle, the cutting edge is longer (length indicated by the red line).

What You Need to Know about Helix Angle of End Mills 3

Helix Angle and Cutting Resistance

The tangential cutting resistance decreases with the increase of the helix angle, while the axial cutting resistance increases with the increase of the helix angle.

Helix Angle and Lead Angle

The increase in helix angle results in an actual increase in the lead angle of the end mill, making the cutting edge sharper.

Helix Angle and Machined Surface Precision

Generally, the perpendicularity and flatness tolerances of the machined surface increase with the increase of the helix angle. However, after the helix angle exceeds 40°, there is a tendency for these tolerances to decrease with the further increase of the helix angle.

Helix Angle and Tool Life

The wear rate of the circumferential cutting edge is generally proportional to the size of the helix angle. On the other hand, when the helix angle is very small, even slight tool wear significantly reduces the cutting performance, leading to vibration and rendering the tool unusable. When the helix angle is too large, tool rigidity decreases, leading to a reduction in tool life.

Helix Angle and Workpiece Material

When machining soft materials with low hardness, a large helix angle is used to increase the lead angle and improve the sharpness of the cutting edge. When machining hard materials with high hardness, a small helix angle is used to reduce the lead angle and enhance the rigidity of the cutting edge.

 

Principles for Choosing the Helix Angle

For difficult-to-cut materials such as stainless steel with low thermal conductivity and significant heat impact on the cutting edge, using an end mill with a large helix angle in cutting helps extend the tool life.

Furthermore, the characteristics of the finished surface change due to the helix angle. For instance, when smooth finishing is required, there are times when end mills with a large helix angle can be employed. However, when using end mills with a large helix angle, cutting resistance and the force causing the right helix angle tool to pull outward increase. Therefore, corresponding measures must be taken, such as using a tool holder with high clamping rigidity. Although this ensures the tool’s rigidity, in cases where the workpiece rigidity is low, such as in thin sheet processing, end mills with a small helix angle are sometimes used.

 

Characteristics of Different Helix Angles

End mill with a large helix angle of 50 degrees

This vertical milling cutter is designed for precision side milling. It offers excellent tool rigidity, minimizing deflection during side milling, and simultaneously suppressing the risk of tool tip chipping to the greatest extent possible.

helix angle

60° helix angle vertical milling cutter

This helix angle is suitable for high-speed cutting of difficult-to-cut materials such as SUS304 stainless steel. For hard-to-cut materials with low thermal conductivity, where the temperature at the cutting edge is prone to rise during cutting, a 60° helix angle helps suppress the impact of cutting heat on the cutting edge.

What You Need to Know about Helix Angle of End Mills 4

45° helix angle vertical milling cutter

Adopting a 45° helix angle can better achieve high-speed machining and high wear resistance.

What You Need to Know about Helix Angle of End Mills 5

Резюме

In conclusion, the helix angle is one of the primary parameters of helical-edged end mills, and changes in the helix angle significantly impact the cutting performance of the tool. With the development of CNC machining technology and flexible manufacturing, altering the helix angle in tool manufacturing has become feasible and straightforward. Further in-depth research into the various effects of helix angle size on the cutting performance of helical-edged end mills, when combined with the performance of machine tools and fixtures, and considering factors such as material properties, machining precision, efficiency, tool material, and tool life, can undoubtedly play a crucial role in optimizing the helix angle size and promote efficient and precise milling processes.

Добавить комментарий

Ваш адрес email не будет опубликован. Обязательные поля помечены *

白嫩在线亚洲观看| 色逼色逼色逼色逼色逼色| 啊啊啊男女激情插插视频| 欧美国产综合日韩一区二区| 九九视频精品只有这里有| 天天摸天天添人人澡| 开心五月播五月亚洲第一| 2021最新热播国产一区二区| 公交车上被后入搞逼漫画| 亚洲一区二区三区四区国产| 草草久性色av综合av| 亚洲欧美日韩另类| 国产精品三级一区二区| 骚逼被操视频拳交| 又色又爽又黄的吃奶Av| 免费看看小骚逼逼| 久久久国产精品亚洲无码| 日韩 中文字幕在线最新| 久久精品国产亚洲高清| 亚洲午夜av一区二区三区| 亚洲大尺度无码无码专线一区| 中文字幕在线资源第一页| 国产高欧美性情一线在线| 欧美性爱撅臀插入啪啪啪| 69国产成人综合久久精| 啦啦啦视频在线手机播放| 中文字幕av一区二区三区哈| 在线免费观看一区二区三区| 人妻波多野结衣爽到喷水| 大鸡巴插入阴道视频| 18岁以下禁看美女的胸| 最新AV中文字幕在线看| 黑人猛操日本美女| 亚洲激情无码视频| 东京热无码AV一区二区三区| 亚洲日韩不卡一区二区三区| 曰木高清免费一本| 泰国无码AV片在线观看| 女人被男人躁爽色欲国产| 在线观看日韩欧美| 欲色福利网免费在线播放|