one with hfb 2 Coated cutting tool and method for its preparation
A coating and cutting tool technology, applied in the coating, metal material coating process, vacuum evaporation coating, etc., to achieve the effect of improving wear resistance, high thermal conductivity, and inhibiting bonding wear
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Embodiment 1
[0035] Please refer to figure 1 , figure 1 shows a HfB-containing 2 Schematic diagram of the structure of one embodiment of a coated tool. figure 1 Shown with HfB 2 Coated tools have a single layer of HfB 2 The specific structure of the coating is: the tool includes a substrate 10, HfB deposited on the surface of the substrate 10 2 Coat 20. The HfB 2 Coating 20 is deposited using DC magnetron sputtering. The substrate 10 may be a cemented carbide substrate. The HfB 2 Coating 20, in atomic percent, comprising 41 atomic percent Hf, and 59 atomic percent B; HfB 2 The coating thickness is 2.5 μm.
[0036] The HfB-containing 2 The preparation method of the coated cutting tool comprises the following steps:
[0037] 1) Substrate pretreatment: The substrate is cleaned in ultrasonic waves and heated to remove surface moisture, and then the substrate is clamped on a three-dimensionally rotatable turntable and sent to the chamber of the coating equipment.
[0038] 2) Vacuum t...
example 2
[0045] Please refer to figure 1 , a species with HfB 2 Coated cutters having a single layer of HfB 2 The specific structure of the coating is: the tool includes a substrate 10, HfB deposited on the surface of the substrate 10 2 Coat 20. The HfB 2 Coating 20 is deposited using high power magnetron sputtering. The base body 10 is a high speed steel base body. The HfB 2 Coating 20 comprises, in atomic percent, 28 atomic percent Hf, and 72 atomic percent B; HfB 2 The coating thickness was 2.8 μm.
[0046] The HfB-containing 2 The preparation method of the coated cutting tool comprises the following steps:
[0047] 1) Substrate pretreatment: The substrate is cleaned in ultrasonic waves and heated to remove surface moisture, and then the substrate is clamped on a three-dimensionally rotatable turntable and sent to the chamber of the coating equipment.
[0048] 2) Vacuum the chamber: first vacuum the chamber to 2×10 -3 Below Pa, turn on the heater and set it to 500°C for 5...
example 3
[0055] Please refer to figure 2 , a species with HfB 2 Coated cutting tool having a multilayer coating comprising HfB 2 coating. The specific structure of the cutting tool is: the cutting tool includes a substrate 10, a first MeN coating 31 deposited on the surface of the substrate 10, a HfB coating deposited on the first MeN coating 31 2 Coating 20, deposited on the HfB 2 A second MeN coating 32 on coating 20. Among them, Me represents an alloying element. The first MeN coating 31, HfB 2 Both the coating 20 and the second MeN coating 32 are deposited by DC magnetron sputtering. The substrate 10 is a cemented carbide substrate, and the first MeN coating 31 and the second MeN coating 32 are both CrAlN coatings.
[0056] The HfB 2 Coating 20 includes, on an atomic percent basis, 38 atomic percent Hf and 62 atomic percent B.
[0057] The first MeN coating layer 31 includes 45 atomic percent Cr and 55 atomic percent N in terms of atomic percent.
[0058] The second MeN ...
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