Diamond-coated cutters have different life spans

12 5月 2018 | 没有评论 | posted by admin | in Article

The
As with any other tool, the life of diamond-coated tools varies, depending on the material being cut, the feed rate and cutting speed selected, and the geometry of the workpiece. In general, diamond-coated cutters for processing graphite are 10-20 times longer than uncoated carbide cutters and may even be longer in some cases. In this way, you can use a single tool to perform almost any machining task, without the need for tool change due to tool wear, to avoid machining interruptions and recalibration, which makes it possible to achieve unattended processing. It is also entirely possible to obtain long tool life in the processing of composite materials.

Cast iron cutting characteristics

11 5月 2018 | 没有评论 | posted by admin | in Article

In general, the higher the hardness and strength of the cast iron, the lower the metal cutting performance and the lower the expected life from the blade and the tool. Most of the types of metal cutting performance for cast iron used in metal cutting production are generally good. The metal cutting performance is related to the structure, and the harder pearlite cast iron is also more difficult to process. Flaky graphite cast iron and malleable cast iron have excellent cutting properties, and ductile cast iron is rather poor.

The main types of wear encountered when machining cast iron are: Abrasive, adhesive, and diffuse wear. Abrasions are mainly caused by carbides, sand inclusions, and hard cast skins. Adhesive wear with built-up edge occurs at low cutting temperature and cutting speed conditions. The ferrite portion of cast iron is most easily welded to the blade, but this can be overcome by increasing the cutting speed and temperature.

Milling cutter knowledge GG milling cutter

9 5月 2018 | 没有评论 | posted by admin | in Article

Milling cutters There are many types of milling cutters. Ordinary milling machines and numerically controlled milling machines can machine grooves and straight lines roughly, and milling and boring machining centers can process cavities, cores, and curved surfaces.

Generally divided into:

1. Men’s hair milling cutter: rough milling, removal of a large number of rough, facet or object surface of the large horizontal plane or rough outline milling;

2. Ball-end cutter: semi-finishing and fine milling of the surface; the small knife can be used to finish the small chamfer of the steep surface/straight wall.

3. Men’s hair cutter with chamfer, roughing can be removed to remove a large number of rough, but also fine finishing smooth surface (relatively steep surface) small chamfer.

4. Molding cutters: Including chamfering cutters, T-shaped cutters, tooth cutters, and inner R cutters.

5. Chamfering tool, chamfering tool The shape of the chamfering tool is the same as that of the chamfering tool. It is divided into milling cutters with chamfering and chamfering.

6.T-type knife, milling T-slot;

7. Tooth-type knives, milling out a variety of tooth types, such as gears.

8. rough knife, rough milling cutter designed for aluminum copper cutting, can be quickly processed.

Milling cutters usually have two materials: high-speed steel, carbide. The latter is relatively high in hardness compared to the former and has a strong cutting force, which can increase the speed and feed rate, increase productivity, hide the knife, and process difficult-to-machine materials such as stainless steel/titanium alloys.