When cutting plastic materials at a higher speed, the part on the rake face close to the cutting force will wear into a crescent concave shape under the action of chips, so it is also called crater wear. In the early stage of wear, the tool rake angle is increased, which improves the cutting conditions and facilitates the curling and breaking of the chips. However, when the crescent cavity is further increased, the cutting edge strength is greatly weakened, which may eventually cause the cutting edge to collapse and damage Case. When cutting brittle materials, or cutting plastic materials with a lower cutting speed and a thinner cutting thickness, crater wear will generally not occur.

ExactP1000

Tool nose wear is the wear on the flank surface of the tip arc and the adjacent secondary flank surface. It is the continuation of the wear on the flank surface of the tool. Due to the poor heat dissipation conditions and the concentration of stress, the wear speed is faster than the flank. Sometimes a series of small grooves with a distance equal to the feed are formed on the secondary flank, which is called groove wear. They are mainly caused by the hardened layer and cutting lines on the machined surface. When cutting hard-to-cut materials with a high tendency to work hardening, it is most likely to cause groove wear. Tool tip wear has the greatest impact on the surface roughness and machining accuracy of the workpiece.

Statistic cookies are used to optimize the design, usability, and effectiveness of a website. An example could be using the collected information to analyze and determine what information is most popular on the site, to be aware of what should be easy to find on the site.

During cutting, there is a lot of pressure and strong friction between the workpiece, the cutting and the front and rear faces, so cold welding will occur. Due to the relative movement between the friction pairs, the cold welding will produce cracks and be taken away by one side, resulting in cold welding wear. Cold welding wear is generally more serious at moderate cutting speeds. According to experiments, brittle metals are more resistant to cold welding than plastic metals; Multiphase metals are smaller than unidirectional metals; Metal compounds have a lower tendency than simple cold welding; Group B elements in the periodic table of chemical elements have a low tendency to cold weld with iron. Cold welding of high-speed steel and cemented carbide is more serious during low-speed cutting.

Exactpipe cutter 170E

You can block or remove cookies on this website by withdrawing your consent or by deleting them in your browser's settings. However, please be aware that there may be features and services on the site that are no longer functional if you do not allow cookies or delete them.

ExactPipeCut 460 Pro Series

3.Ensure the quality of welding and sharpening, and avoid various defects caused by poor welding and sharpening. For the cutting tools used in key processes, the cutting tools should be ground to improve the surface quality and check for cracks;

2.Reasonably choose the tool geometry parameters. By adjusting the front and rear angles, main and auxiliary deflection angles, and blade inclination angles; Ensure that the cutting edge and tip have good strength. Grinding a negative chamfer on the cutting edge is an effective measure to prevent tool collapse;

A cookie is a small data file that is sent to the browser where it is stored in order to make the website able to recognize your computer. All websites can send cookies to your browser if your browser settings allow it. Websites can only read information from cookies they have stored and cannot read cookies from other websites. There are two types of cookies: permanent and temporary (session cookies). Permanent cookies are stored as a file on your computer for an extended period. Session cookies are temporarily placed on your computer when you visit a website, but disappear when you close the site, which means that they are not permanently stored on your computer. Most companies use cookies on their websites to improve usability, and cookies cannot damage your files or increase the risk of viruses on your computer.

You also have the option to block or delete cookies in your browser (will apply to both cookies from this site and third-party cookies)You can read more about how to carry this out here:https://erhvervsstyrelsen.dk/cookies

The material being processed often has some very hard particles, which can make grooves on the tool surface, this is abrasive wear. Abrasive wear exists on all surfaces, the rake face is the most obvious. Moreover, abrasive wear can occur at various cutting speeds, but for low-speed cutting, due to the lower cutting temperature, the wear caused by other reasons is not obvious, so abrasive wear is the main reason.

Exactcut software

1.According to the characteristics of the processed materials and parts, the various types and grades of tool materials should be selected reasonably. Under the premise of certain hardness and wear resistance, the tool material must be guaranteed to have the necessary toughness;

Technical cookies are necessary for most websites to function properly. As the name indicates, they only have technical significance and thus no impact on your privacy, as they do not register what you are looking at or searching for on other websites.

In the process of cutting at high temperature and the contact between the workpiece and the tool, the chemical elements of both parties diffuse each other in the solid state, changing the composition and structure of the tool, making the surface of the tool fragile, and intensifying the wear of the tool. The diffusion phenomenon always maintains the continuous diffusion of objects with high depth gradients to objects with low depth gradients. Because the workpiece, chips and tool materials are different, thermoelectric potential will be generated in the contact area during cutting. This thermoelectric potential has the effect of promoting diffusion and accelerating tool wear. This kind of diffusion wear under the action of thermoelectric potential is called "thermoelectric wear".

As the functionality of most websites depend on cookies being stored when a user visits the website, first and foremost, we set cookies to have a functional site. We also use both 1st party and 3rd party cookies to improve the user experience on our site and offer relevant marketing. When a 3rd party cookie is set, it means that we have allowed a third party, such as social media, Google Analytics or the like to place a cookie in your browser when you visit our website.

The data that is typically collected via cookies will i.a. be your IP address, unique IDs and information about your user behavior.

ExactPipe Cutter 220E

4.Choose the cutting amount reasonably to avoid excessive cutting force and high cutting temperature to prevent tool damage;

When the temperature rises, the surface of the tool is oxidized to produce softer oxides and the wear formed by the friction of the chips is called oxidative wear.

Exactpipe cut 360

Marketing cookies collect information by following you around on the individual websites you visit - they can be said to register your digital footprints.Therefore, marketing cookies are "tracking cookies". The information collected is used to create insight regarding your interests, habits, and activities in order to show you relevant. This way, you receive targeted content, for example in the form of suggested information, articles, and ads.

When cutting plastic materials with a large cutting thickness, the flank face of the tool may not contact the workpiece due to the existence of built-up edge. In addition, usually the flank face will come into contact with the workpiece, and a wear zone with a clearance angle of 0 is formed on the flank face. Generally, in the middle of the working length of the cutting edge, the flank wear is relatively uniform, so the degree of wear of the flank can be measured by the width VB of the flank wear zone of the cutting edge. Since various types of tools almost all have flank wear under different cutting conditions, especially when cutting brittle materials or cutting plastic materials with a smaller cutting thickness, the tool wear is mainly flank wear, and the wear zone The measurement of the width VB is relatively simple, so VB is usually used to indicate the degree of tool wear. The larger the VB, not only will increase the cutting force and cause cutting vibration, but also affect the wear of the arc of the tool tip, thereby affecting the machining accuracy and the quality of the machined surface.

Functional cookies register your user preferences by remembering the settings you choose and other choices you make on a website. An example could be what preferences you have in terms of language and text size.