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A workpiece provided with aluminum and chromium hard material layer and a preparation method thereof

A workpiece and condition technology, applied in the field of parts, can solve problems such as chromium/aluminum distribution fluctuations

Active Publication Date: 2009-10-07
OERLIKON SURFACE SOLUTIONS AG PFAFFIKON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deposition of this layer is done by the hollow cathode process, but because of its intermittent evaporation process, it causes large fluctuations in the chromium / aluminum distribution in the (CrAl)N layer

Method used

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  • A workpiece provided with aluminum and chromium hard material layer and a preparation method thereof
  • A workpiece provided with aluminum and chromium hard material layer and a preparation method thereof
  • A workpiece provided with aluminum and chromium hard material layer and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: Milling of structural steel

[0053] Tools: end mill, hard metal

[0054] Diameter D=8mm, number of teeth z=3

[0055] Material: Structural steel Ck45, DIN 1.1191

[0056] Milling parameters:

[0057] cutting speed v c =200 / 400m / min

[0058] Feed speed v f =2388 / 4776mm / min

[0059] Radial engagement width a e =0.5mm

[0060] Axial engagement width a p =10mm

[0061] Cooling: Emulsion 5%

[0062] Process: down milling

[0063] Wear criteria: cutting surface wear VB = 0.12mm

[0064]

[0065] Example 1 shows a comparison of the service life of coated HM milling cutters tested at different cutting parameters.

[0066] It is evident that the described AlCrN layer has a longer service life than the layer systems used hitherto industrially, such as TiCN and TiAlN. Furthermore, it can be seen from the results that, as in the case of Example 1 with a high Al content, only the cubic B1 structure is maintained. Then, the durability characteristic was ...

Embodiment 2

[0067] Example 2: Milling of austenitic steel

[0068] Tools: end mill, hard metal

[0069] Diameter D=8mm, number of teeth z=3

[0070] Material: Austenitic steel X6CrNiMoTi 17 12 2, DIN 1.4571

[0071] Milling parameters:

[0072] cutting speed v c =240m / min

[0073] Tooth feed f z =0.08mm

[0074] Radial engagement width a e =0.5mm

[0075] Axial engagement width a p =10mm

[0076] Cooling: Emulsion 5%

[0077] Process: down milling

[0078] Wear criteria: cutting surface wear VB = 0.1mm

[0079]

[0080] Example 2 shows a comparison of the service life of coated HM milling cutters. The AlCrN layer achieves improved wear properties compared to industrially used hard layers. The increase in service life in the case of AlCrN is due on the one hand to the as yet unproven lower propensity for material lubrication of the second alloying element Cr compared to Ti in the TiAlN layer and on the other hand to the The excellent wear resistance and high hardness of t...

Embodiment 3

[0081] Example 3: Milling of hardened steel

[0082] Tool: Spherical milling cutter, hard metal

[0083] Diameter D=10mm, number of teeth z=2

[0084] Material: K340 (62HRC), corresponding to C 1.1%, Si 0.9%, Mn 0.4%, Cr 8.3%, Mo 2.1%, V 0.5%

[0085] Milling parameters:

[0086] cutting speed v c =0-120m / min

[0087] Tooth feed f z =0.1mm

[0088] Radial engagement width a e =0.2mm

[0089] Axial engagement width a p =0.2mm

[0090] Cooling: dry

[0091] Process: Climb and up milling, finishing

[0092] Wear criteria: cutting surface wear VB = 0.3mm

[0093]

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Abstract

The invention relates to a workpiece or a component containing a layer system which contains at least one layer consisting of (AlCr)X, wherein, x=N, C, B, CN, CBN, NO, CO, BO, CNO, BNO or CBNO; and y is bigger than or equal to 0.2 and is smaller than 0.7; the composition of the layer in the layer is basically constant or in continuous or laminating changes through thickness of the layer. The workpiece or the component also relates to a method for preparing the workpiece or the component.

Description

[0001] This application is a divisional application of the invention patent application with application number 200480018278.6 and application date of March 24, 2004. technical field [0002] The technical field that the present invention relates to is a coating containing at least one layer of the following composition as (Al y Cr 1-y ) Artifacts of the layer system of layers of X: [0003] A coating containing at least one layer consisting of (Al y Cr 1-y ) The workpiece of the layer system of the layer of X, wherein X=N, C, B, CN, BN, CBN, NO, CO, BO, CNO, or CBNO, and 0.2≤y<0.7, the layer composition in the layer is determined by The thickness of the layer varies continuously or hierarchically, and in the layer (Al y Cr 1-y ) X is a cubic crystal hook, and the workpiece is one of the following tools: namely, a milling cutter; broaches, reamers, indexable blades suitable for rotary processing and milling; molds or injection molding tools. [0004] In a preferred em...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/34
Inventor V·德尔夫林格A·赖特C·盖
Owner OERLIKON SURFACE SOLUTIONS AG PFAFFIKON
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