Face Milling Productivity Increase on the Basis of the Combined Tool

2022 ◽  
pp. 591-598
Author(s):  
V. G. Gusev
Keyword(s):  
Face Milling ◽  
Productivity Increase

IMPROVEMENT OF THE HYDRAULIC EXCAVATOR BUCKET DESIGN

2019 ◽  
Vol 16 (3) ◽  
pp. 202-213 ◽  
Author(s):  
G. G. Buriy ◽  
V. S. Shherbakov ◽  
S. B. Skobelev ◽  
V. F. Kovalevskiy
Keyword(s):  
Cost Reduction ◽  
Production Costs ◽  
Hydraulic Excavator ◽  
Engineering Structures ◽  
Excavator Bucket ◽  
Productivity Increase ◽  
Hydraulic Excavators ◽  
Reducing Costs ◽  
Rational Operation ◽  
Resistance Forces

Introduction.Construction of engineering structures is impossible without building and road machines. The large volume of financing is allocated for such machines’ purchase. The main ways of reducing costs of the equipment consist in more rational operation of the equipment and also in decrease of equipment’s cost by constructive changes. The paper demonstrates the new design of the single-bucket hydraulic excavator with smaller cost.Materials and methods.The main ways of cost reduction for construction machines are more rational operation and depreciation of a design with the required characteristics’ maintaining. The paper describes constructive changes of the working equipment of the single-bucket hydraulic excavator, which allow decreasing the production costs.Results.The authors describe the new bucket design of the single-bucket hydraulic excavator. Moreover, the authors carry out the analysis of the existing buckets’ design. The paper also illustrates the functioning on bucket forces while digging process. The authors describe the solutions of the problem for productivity increase of the single-bucket in hydraulic excavators. In addition, the authors make the scheme of the bucket loading while digging process. Such scheme helps to reduce resistance forces of digging.Discussion and conclusions.As a result, the paper presents the design of the working equipment of the hydraulic excavator’s single-bucket, which allows reducing resistance forces of digging. Such results would help to establish buckets of bigger capacity and would lead to the productivity increase.

UGIMA 4571

Alloy Digest ◽  
2014 ◽  
Vol 63 (9) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
General Purpose ◽  
Corrosion Resistant ◽  
Productivity Increase ◽  
Machining Productivity

Abstract Ugima 4571 is a general-purpose, corrosion-resistant austenitic stainless steel with added titanium for stabilization of the weld. The machining productivity increase is 15–30% compared with the regular grade 1.4571 stainless. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1183. Producer or source: Schmolz + Bickenbach USA Inc..

Studi implementasi cad/cam pada proses milling cnc terhadap kekasaran permukaan dan tingkat kepresisian aluminium 6061

2018 ◽  
Vol 11 (1) ◽  
pp. 36
Author(s):  
Risdiyanto Edy Saputro ◽  
Indri Yaningsih ◽  
Heru Sukanto
Keyword(s):  
Face Milling ◽  
Pocket Milling ◽  
Slot Milling ◽  
Cad Cam ◽  
Thread Milling

Penelitian ini dilakukan untuk mengetahui pengaruh penerapan CAD /CAM terhadap proses penggilingan CNC terhadap kekasaran dan ketelitianpermukaan. Spesimen dibuat dengan menggunakan tujuh jenis prosespemotongan. Terdapat face milling, pocket milling, profile milling, slotmilling, pengeboran, thread milling dan surface contouring. Hasil penelitianmenunjukkan bahwa penerapan CAD / CAM dengan variasi prosespemotongan menghasilkan nilai kekasaran yang lebih rendah daripadatanpa penerapan CAD / CAM. Nilai kekasaran permukaan untuk masingmasingproses pemotongan adalah proses face milling (0,5028 μm; 0,5132μm), slot milling (0.664 μm; 0.6556 μm), profile milling (1.282 μm; 1.3128μm), pocket milling (1.3852 μm; 1.4856 μm ) Dan proses pengeboran(1.9944 μm; 2.1136 μm). Nilai rata-rata dimensi dari pengukuranmenunjukkan selisih antara hasil implementasi CAD / CAM dan tanpaimplementasi CAD / CAM. Persentase perbedaan panjang dan lebarmasing-masing 0,037%; 0,059% untuk profile milling; 0,039%; 0,061%untuk pocket milling; Dan 0.151%; 0,317% untuk pengeboran Penggunaanstatistik penerapan CAD / CAM tidak secara signifikan mempengaruhi nilaikekasaran permukaan namun memiliki pengaruh signifikan terhadapketepatan produk dengan tingkat presisi 95%.

Effect of tool wear on the surface integrity of Inconel 718 in face milling with cemented carbide tools

Wear ◽  
2021 ◽  
pp. 203752
Author(s):  
A.R.F. Oliveira ◽  
L.R.R. da Silva ◽  
V. Baldin ◽  
M.P.C. Fonseca ◽  
R.B. Silva ◽  
...  
Keyword(s):  
Tool Wear ◽  
Surface Integrity ◽  
Inconel 718 ◽  
Face Milling ◽  
Cemented Carbide ◽  
Cemented Carbide Tools

scholarly journals Optimum Selection of Variable Pitch for Chatter Suppression in Face Milling Operations

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 112 ◽  
Author(s):  
Alex Iglesias ◽  
Zoltan Dombovari ◽  
German Gonzalez ◽  
Jokin Munoa ◽  
Gabor Stepan
Keyword(s):  
Removal Rate ◽  
Face Milling ◽  
Heavy Duty ◽  
Variable Pitch ◽  
Thin Walls ◽  
Chatter Suppression ◽  
Milling Operations ◽  
Optimum Selection ◽  
Cutting Capacity ◽  
Selection Of

Cutting capacity can be seriously limited in heavy duty face milling processes due to self-excited structural vibrations. Special geometry tools and, specifically, variable pitch milling tools have been extensively used in aeronautic applications with the purpose of removing these detrimental chatter vibrations, where high frequency chatter related to slender tools or thin walls limits productivity. However, the application of this technique in heavy duty face milling operations has not been thoroughly explored. In this paper, a method for the definition of the optimum angles between inserts is presented, based on the optimum pitch angle and the stabilizability diagrams. These diagrams are obtained through the brute force (BF) iterative method, which basically consists of an iterative maximization of the stability by using the semidiscretization method. From the observed results, hints for the selection of the optimum pitch pattern and the optimum values of the angles between inserts are presented. A practical application is implemented and the cutting performance when using an optimized variable pitch tool is assessed. It is concluded that with an optimum selection of the pitch, the material removal rate can be improved up to three times. Finally, the existence of two more different stability lobe families related to the saddle-node and flip type stability losses is demonstrated.

Theoretical Surface Roughness Model in High Speed Face Milling

2014 ◽  
Vol 989-994 ◽  
pp. 3331-3334
Author(s):  
Tao Zhang ◽  
Guo He Li ◽  
L. Han
Keyword(s):  
Surface Roughness ◽  
Surface Integrity ◽  
High Speed ◽  
Cutting Parameters ◽  
Angular Speed ◽  
Face Milling ◽  
Advanced Manufacturing ◽  
Roughness Model ◽  
Machined Parts ◽  
Important Object

High speed milling is a newly developed advanced manufacturing technology. Surface integrity is an important object of machined parts. Surface roughness is mostly used to evaluate to the surface integrity. A theoretical surface roughness model for high face milling was established. The influence of cutting parameters on the surface roughness is analyzed. The surface roughness decreases when the cutter radius increases, total number of tooth and rotation angular speed, while it increases with the feeding velocity. The high speed face milling can get a smooth surface and it can replace the grinding with higher efficiency.

RIF and Productivity Increase?

1984 ◽  
Vol 7 (1) ◽  
pp. 1-5
Author(s):  
Mark R. Edwards ◽  
J. Ruth Sproull
Keyword(s):  
Productivity Increase
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