scholarly journals Robust and accurate prediction of thermal error of machining centers under operations with cutting fluid supply

CIRP Annals ◽  
2021 ◽  
Author(s):  
Toru Kizaki ◽  
Shinji Tsujimura ◽  
Yuya Marukawa ◽  
Shigeo Morimoto ◽  
Hisashi Kobayashi
Procedia CIRP ◽  
2017 ◽  
Vol 61 ◽  
pp. 564-569 ◽  
Author(s):  
Nadine Madanchi ◽  
Marius Winter ◽  
Sebastian Thiede ◽  
Christoph Herrmann

2020 ◽  
Vol 4 (2) ◽  
pp. 45 ◽  
Author(s):  
Thomas Lakner ◽  
Marvin Hardt

The tribological effect of cutting fluids in the machining processes to reduce the friction in the cutting zone is still widely unknown. Most test benches and procedures do not represent the contact conditions of machining processes adequately, especially for interrupted contacts. This results in a lack of knowledge of the tribological behavior in machining processes. To close this knowledge gap, a novel experimental test bench to investigate the effects of cutting fluids on the frictional conditions in metal cutting under high-pressure cutting fluid supply was developed and utilized within this work. The results show that there is a difference between the frictional forces in interrupted contact compared to continuous contact. Furthermore, the cutting fluid parameters of supply pressure, volumetric flow rate, and impact point of the cutting fluid jet influence the frictional forces, the intensities of which depend on the workpiece material. In conclusion, the novel test bench allows examining the frictional behavior in interrupted cuts with an unprecedented precision, which contributes to a knowledge-based design of the cutting fluid supply for cutting tools.


Procedia CIRP ◽  
2021 ◽  
Vol 101 ◽  
pp. 362-365
Author(s):  
T. Lakner ◽  
A. Splettstoesser ◽  
D. Schraknepper ◽  
T. Bergs

Procedia CIRP ◽  
2019 ◽  
Vol 81 ◽  
pp. 464-469 ◽  
Author(s):  
T. Lakner ◽  
T. Bergs ◽  
B. Döbbeler

2011 ◽  
Vol 383-390 ◽  
pp. 4576-4584 ◽  
Author(s):  
M.N. Islam ◽  
N. H. Rafai ◽  
B. C. Heng

This paper presents the experimental and analytical results of different cutting fluid supply strategies—dry, minimum quantity lubrication (MQL) and flood turning in terms of the surface finish of turned parts. Subsequently, the influence of independent input parameters on surface finish is investigated in order to optimize their effects. Three techniques—traditional analysis, Pareto ANOVA analysis, and the Taguchi method—are employed. Initially mild steel AISI 1030 has been selected as the work material. The results indicate that the cutting fluid supply strategy has insignificant influence on the surface finish of turned parts. However, the amount of cutting fluid in MQL showed some influence. Further research on two additional materials, aluminum 6061 and alloy steel AISI 4340, reveals that the surface roughness for different work materials is influenced differently by the cutting fluid supply strategies and there is a scope for optimizing the cutting fluid supply strategy in terms of both method and the amount of cutting fluid. This will reduce the amount of cutting fluids used and consequently, their negative impact on the environment, by avoiding unnecessary applications.


2011 ◽  
Vol 120 ◽  
pp. 593-597 ◽  
Author(s):  
Xiao Ye Wang ◽  
Yan Li ◽  
Shu Juan Li

Based on reciprocating electroplated diamond wire saw cutting SiC wafers experiments, the influences law of wire saw diameter, wire saw quality, wire saw speed, wire saw wear and cutting fluid on cutting rate and wafers surface quality was studied. The results indicate that cutting rate increase with wire saw diameter and wire saw speed increase, and decreases with wire saw wear; wafers surface roughness increase with wire saw diameter increase and wire saw wear and a slightly lower with wire saw speed increase; TTV (total thickness variation) is risen slightly with wire saw diameter increase; wire saw wear and insufficient cutting fluid supply are the main factors to cause cutting time increase and wafers quality decline. And the experimental results were analyzed.


2017 ◽  
Vol 749 ◽  
pp. 101-106
Author(s):  
Toshiaki Wakabayashi ◽  
Keisuke Yamada ◽  
Shota Koike ◽  
Toshifumi Atsuta

Because of effective machining operations with a very small amount of cutting fluids, near-dry machining attracts increasing attentions for environmental and economical benefits. MQL machining has so far been recognized as the most representative near-dry method and it is highly successful in machining of most ordinary steels. Recent concern for environmentally friendly manufacturing further encourages the attempts at applying near-dry operations to machining of difficult-to-cut materials. Since titanium alloys are typical difficult-to-cut materials, this paper investigates the cutting performance of various near-dry methods in turning of a titanium alloy from the view point of elongating the tool life. Those near-dry operations include supply methods of regular MQL mist, coolant mist and hybrid mists, where the coolant mist is atomized water-soluble cutting fluid and hybrid mists are the mixture of MQL and coolant mists. The regular MQL operation provided longer tool life than that of dry machining. In addition, compared with MQL machining, the hybrid mist operations could further extend tool life and, in particular, the single coolant mist operations demonstrated the possibility of making the tool life longer than that of ordinary wet machining with flood cutting fluid supply.


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