What Is Diamond Turning?

That is, lathe processing, which is part of mechanical processing. Lathe processing mainly uses a turning tool to turn a rotating workpiece. Drills, reamers, reamers, taps, dies and knurling tools can also be used on the lathe for corresponding processing. Lathes are mainly used for machining shafts, disks, sleeves and other workpieces with rotating surfaces. They are the most widely used machine tools in machinery manufacturing and repair plants.

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The workpiece rotates,

Easy to guarantee

Using different turning tools or other tools on the lathe, you can process various turning surfaces, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, threads, grooves

[Turning] The modification function can generate a three-dimensional object by rotating a two-dimensional figure. After applying this command, you usually need to adjust the alignment axis and alignment position to get the correct result.

The ancient lathe was cut by hand or pedal, rotating the workpiece through the rope, and holding the tool.

1797 British mechanical inventor

1. Rough turning is the most cost-effective method for roughing the outer circle. Since the purpose of rough turning is mainly to quickly remove excess metal from the blank, improving productivity is its main task.

Rough cars usually use the largest possible

1. Precautions when setting up and correcting the workpiece

Before clamping the workpiece, the impurities such as sand and carbon in the workpiece must be removed to prevent the impurities from being embedded.

According to different uses and structures, lathes are mainly divided into horizontal lathes and floor lathes, vertical lathes, turret lathes, single-axis automatic lathes, and multi-axis automatic lathes.

Lathe operation

(1) Lubricate the machine according to the regulations before work, check whether the handles are in place, and run a trial run for five minutes to confirm that everything is normal before operation.

Definition

Turning tools are the most widely used single-edged tools. It is also the basis for learning and analyzing various types of tools. Turning tools are used on various lathes to process outer circles, inner holes, end faces, threads, and grooves.

2. Classification

Turning tools can be divided into overall turning tools, welding turning tools, machine turning tools, indexable turning tools and forming turning tools according to their structure. Among them, indexable turning tools are increasingly used, and their proportion in turning tools is gradually increasing.

(1) The so-called welded turning tool for carbide welding turning tools is to open the sipe on the carbon steel arbor according to the requirements of the geometric angle of the tool, and weld the carbide blade into the sipe with solder, and select The geometric parameters of the turning tool used after sharpening.

(2) Machine-tool turning tools Machine-tool turning tools are ordinary turning blades, which are used to hold the blades on the bar by mechanical clamping.

(3) Indexable turning tools Indexable turning tools are turning tools with indexable blades. After a cutting edge is blunt, it can be quickly indexed and replaced by an adjacent new cutting edge, and it can continue to work until all cutting edges on the blade have been blunt, and the blade is discarded for recycling. After replacing the new blade, the turning tool can continue to work.

Compared with welding turning tools, indexable turning tools have the following advantages:

A. High tool life Since the blade avoids defects caused by high temperatures due to welding and sharpening, the tool's geometric parameters are completely guaranteed by the blade and the shank groove, and the cutting performance is stable, thereby improving the tool life.

B. High production efficiency. Because the machine tool operator no longer sharpens the knife, the auxiliary time such as tool change during shutdown can be greatly reduced.

C. It is conducive to the promotion of new technologies and new processes. The indexable knife is conducive to the promotion of the use of new cutting materials such as coatings and ceramics.

D. Conducive to reducing tool costs. Due to the long service life of tool holders, the consumption and inventory of tool holders are greatly reduced, tool management is simplified, and tool costs are reduced.

Clamping characteristics and requirements of indexable turning tool blades:

A. After positioning the insert with high precision or changing the new insert, the change of the position of the tool tip should be within the allowable range of the workpiece accuracy.

B. Reliable clamping of the blades should ensure that the contact surfaces of the blades, shim pads, and toolholders fit tightly and can withstand shock and vibration, but the clamping force should not be too large, and the stress distribution should be uniform to avoid crushing the blades.

C. Smooth chip removal It is best to have no obstacle on the front of the blade to ensure smooth chip discharge and easy observation.

D. Easy to use. Changing blades and replacing new blades is easy and quick. For small tools, the structure must be compact. When meeting the above requirements, make the structure as simple as possible and make it easy to manufacture and use.

(4) Forming turning tool The forming turning tool is a special tool for processing the forming surface of a rotating body. Its blade shape is designed according to the contour of the workpiece. It can be used on various types of lathes to machine the forming surface of the inside and outside rotating body. When forming parts with a forming lathe, the part surface can be formed at one time, which is easy to operate and has high productivity. After processing, it can reach tolerance levels IT8 to IT10, roughness is 10 to 5 m, and can ensure high interchangeability. However, the forming turning tool is more complicated to manufacture, the cost is higher, and the working length of the blade is wider, so it is easy to cause vibration. Forming turning tools are mainly used to process large and medium-sized parts with forming surfaces.

Classified by use

(1) Turning tools can be divided according to purpose

(A) 90 ° turning tool (partial knife);

(B) 45 ° turning tool (elbow turning tool);

(D) boring cutter;

(E) forming turning tools;

(F) thread turning tools;

(G) Carbide grinding tools

(2) Basic use of various turning tools

(A) 90 ° turning tool: used to turn the outer circle, step and end face of the workpiece.

(B) 45 ° turning tool: used to turn the outer circle, end face and chamfer of the workpiece.

(D) Boring cutter: used for turning the inner hole of the workpiece.