A method for preparing a low-friction coefficient coated tool by using a pre-cutting method and the tool
A low friction coefficient and cutting tool technology, applied in coating, metal material coating process and other directions, can solve the problems of high equipment and technical operation requirements, high cost of parts processing and manufacturing, complex process, etc., to achieve easy promotion and reduce cutting. The effect of strength and simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] This embodiment provides a kind of method that utilizes pre-cutting method to prepare low-friction coefficient coated tool, such as figure 1 As shown, the tool is used to pre-cut the pre-cut workpiece of at least two low-friction-coefficient coating materials successively, so that the low-friction-coefficient coating material is coated on the tool surface, and a composite low-friction coefficient coating is formed on the tool surface. Alternatively, only one low-friction-coated workpiece material is cut to form a single low-friction coating on the tool surface.
[0033] Specifically, solid carbide or high-speed steel cutting tools, such as turning inserts, milling inserts, solid milling cutters or drill bits, are selected as objects to be coated. Si-aluminum alloy and ductile cast iron are selected as low-friction coefficient coating materials. By pre-cutting the silica-aluminum alloy and ductile cast iron material successively, the two materials are bonded and coated o...
Embodiment 2
[0050] This embodiment provides a low friction coefficient coated tool, which is manufactured by the method described in Embodiment 1. Such as Figure 4 and Figure 5 As shown, the low friction coefficient coated cutting tool 6 includes a substrate 9 and a nodular cast iron coating 7 and a silicon-aluminum alloy coating 8 coated on the surface of the substrate 9, wherein the nodular cast iron coating 7 is located on the silicon-aluminum alloy coating Layer 8 upper side.
[0051] The processing equipment adopted by the low coefficient of friction coating tool 6 is as figure 2 As shown, the pre-cut workpiece is connected to the machine tool spindle 1 through the machine chuck 2, and the tool 5 is processed from one end of the pre-cut workpiece to the other end, so that the pre-cut workpiece forms a machined surface 4 and an unmachined surface 3.
[0052] The enlarged diagram of the contact area I between the tool 5 and the pre-cut workpiece is as follows: image 3 As shown,...
Embodiment 3
[0057] In this embodiment, a turning insert whose model is SNMG120412 and whose material is tungsten carbide is taken as an example, and the method described in Example 1 is used to prepare a composite low-friction coefficient coated tool of silicon-aluminum alloy and ductile iron.
[0058] First, using the cutting parameters in Table 1, the workpiece materials of silicon-aluminum alloy Al-8% Si and ductile cast iron QT400 with a diameter of 100mm and a length of 150mm were turned successively. The turning time was 2s respectively, and the turning method was dry cutting. After the silicon aluminum alloy Al-8%Si and the ductile cast iron QT400 are turned, EDS is used to test the distribution of the coating material in the contact area between the tool and the workpiece material. After the pre-cutting is completed, the preparation of the silicon-aluminum alloy and ductile iron composite low friction coefficient coating tool is completed.
[0059] The typical difficult-to-machine...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More