Tools and Materials

1, what are the commonly used carving knives? What are its main uses?

Flat knives, also called column knives, mainly rely on the side edge for carving, the bottom edge is mainly used for flat finishing. The end face of the column knife is large, and the carving efficiency is high. It is mainly used for contour cutting, plane milling, regional rough carving, surface rough carving and so on.

Ball head knife, the cutting edge of the ball knife is circular arc shape, forming a half sphere in the process of engraving, engraving process force uniform, smooth cutting. Therefore, it is especially suitable for surface carving, often used for surface semi-fine carving and surface fine carving. Ball cutter is not suitable for milling plane.

Bull nose knife, bull nose knife is a mixture of ball knife and ball knife, on the one hand, it has the characteristics of ball knife can carve curved surface, on the other hand, it has the characteristics of column knife can be used for milling plane.

Taper flat flat knife, referred to as a taper knife. The bevel knife is the most widely used in the whole carving industry. The bottom edge of a bevel knife, commonly known as the tip, is similar to a column knife and can be used for trimming the flat surface. The side edge of a bevel knife tilts at a certain Angle to form a sloping side during carving. The characteristics of the structure of the bevel knife can make it achieve the three-dimensional Angle clearing effect unique to the carving industry. Bevel knife is mainly used for single line engraving, regional rough engraving, regional fine engraving, THREE-DIMENSIONAL clear Angle, projection engraving, image gray scale engraving and so on.

Taper ball head knife, conical ball knife for short. Cone knife is a mixture of cone knife and ball knife, it has the characteristics of a cone knife on the one hand, with a small tip, on the other hand has the characteristics of ball knife, can carve more fine surface. Conical ball knife is often used for relief surface carving, projection carving, image relief carving, etc.

Taper bull nose knife, taper bull nose knife is a mixture of taper knife and bull nose knife, on the one hand, it has the characteristics of taper knife, can have a smaller tip, carving and milling more fine surface, on the other hand, it has the characteristics of bull nose knife, so taper bull nose knife is often used for relief surface carving.

Big head knife, in essence for the head conical Angle larger conical knife. Mainly used for 3d Angle clearing.

Drilling tool, mainly used for drilling. When the hole is shallow, you can use a flat knife to drill holes.

2. What are the geometric parameters of the tool?

Tool name, tool type, tool length, tool radius, tool Angle, fillet radius.

3, what is the role of tool library?

Responsible for adding, deleting, editing and selecting tools.

4. What should be paid attention to when adding and editing knives?

When adding and editing knives, note the following:

1) Select the right tool set;

2) Select the appropriate tool geometric parameters such as: tool type, top diameter, tool taper, bottom diameter, fillet radius, etc.;

3) set the appropriate tool processing parameters such as: spindle speed, cutting speed, feed speed, cutting speed, the user can specify the material type of the tool, and according to the type of processing workpiece material set some of the processing coefficient and feed. Through "automatic calculation", you can calculate the processing speed parameters. Users can also adjust the processing speed and cooling mode according to the calculated value and experience.

5, what is the role of processing materials?

Record the different properties of different materials processed by the machine tool and assist the programmer to calculate the cutting amount.

6. What are the contents of processing materials?

Tool depth, slotting depth, ratio of lateral feed to tool diameter, maximum cutting rate of machine tool, cutting speed, feed per tooth per turn, etc.

7. How does the system calculate the cutting amount according to the material and tool properties?

The steps of the system to calculate the cutting dosage according to the material are as follows:

(1) Obtain the actual cutting diameter: D (mm)

Except flat - bottom knife, the cutting diameter of other types of tools is related to the machining depth

(2) Calculation of cutting speed: V (m/min)

V (actual value) = basic cutting speed * machining method ratio

(3) Calculate the spindle speed: N (r/min)

N = VX1000/ (3.14 * D)

(4) Calculation of single-side draft depth: Ap= (mm)

Ap = D * [Single side cutting depth/cutting diameter]

If Ap > limit the maximum tool depth, As = limit the maximum tool depth;

(5) Calculation of slotting depth: As (mm)

As = D * [Maximum grooving depth/cutting diameter]

If As > limit the maximum grooving depth, As = limit the maximum grooving depth;

(6) Calculate the lateral feed: Ae (mm)

Ae = D * [lateral feed/cutting diameter];

(7) Calculate the cutting speed: F (m/min)

8. What is the role of material library?

Responsible for adding, deleting, editing and selecting materials.

9, how to choose the tool in the processing process?

Generally considering the characteristics of machine tools, processing materials, processing conditions to determine the type and size of the tool.

10, how to choose the tool according to the processing material

The principle of tool selection according to processing materials is:

A) Wear-resistant hard alloy must be selected for steel mould processing;

B) Aluminum and copper materials are soft, so the cutting tool should not be coated and the cutting tool should be sharp;

C) Grinding wheel with more than 400 mesh must be used for repairing and sharpening tools, and grinding wheel with mirror effect must reach 2000 mesh;