Yanle Li

Yanle Li
Shandong University | SDU · Department of Mechanical Design, Manufacturing and Automation

Doctor of Philosophy
Looking for collaborators in sheet metal forming, green manufacturing processes, surface engineering, etc.

About

62
Publications
14,967
Reads
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1,153
Citations
Additional affiliations
October 2015 - August 2021
Shandong University
Position
  • Associate Professor
August 2011 - March 2015
The University of Queensland
Position
  • PhD

Publications

Publications (62)
Article
Model-based vibration signal analysis to interpret and understand vibration characteristics can provide prior guidance for the condition monitoring and fault diagnosis of planetary gearboxes (PGs). Transmission path effects due to the rotational motion of planet gears with respect to the accelerometer mounted on the PG housing make understanding it...
Article
Planetary gearboxes (PGs) are prone to gear local faults, such as cracking, pitting, and spalling, because of their difficult working environment. These faults may lead to significant capital losses and catastrophic events. Numerous phenomenological modulation models of vibration signals of PGs have been proposed for diagnosis purposes. However, lo...
Article
As a kind of green energy, wind energy has become cost-competitive mainstream energy in the world. The gearbox is one of the most important and vulnerable components in the wind turbine (WT), which suffers a high failure rate and downtime. It is of great significance to the condition monitoring and fault diagnosis of the WT gearbox. However, in the...
Article
Full-text available
Although incremental sheet forming (ISF) is featured with greater flexibility, lower cost, and shorter leading time, there is less comprehensive sustainability assessment for ISF. In order to summarize the research progress on the sustainability evaluation of ISF and further explore its potential application scenario specifically, the research with...
Article
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Although the multi-stage incremental sheet forming strategy is beneficial for manufacturing complex geometrical shapes via objective transitional stages, the forming limit and geometric accuracy are highly dependent on intermediate shapes, which need further improvement. Therefore, a novel forming strategy by combining the multi-stage sheet forming...
Article
The high-temperature oxidation resistance of chromium carbide cermet coating was improved by developing a novel Cr3C2-NiCrCoMo/nano-CeO2 (NCE) composite coating based on the collaborative modification of the multielement alloy adhesive phase. The present study aimed to investigate the influence of nano-CeO2 on the high-temperature oxidation resista...
Article
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Low geometric accuracy is one of the main limitations in double-sided incremental forming (DSIF) with a rough surface finish, long forming time, and excessive sheet thinning. The lost contact between the support tool and the sheet is considered the main reason for the geometric error. Researchers presented different solutions for geometric accuracy...
Chapter
In order to explore the process parameters of laser cladding Fe55 alloy on 40Cr steel, a three-factor, three-level orthogonal experiments were conducted. The influence law of laser power, scanning speed and powder feed rate on the dilution rate and microhardness of the cladding layer are explored. The order of the influence of factors on the diluti...
Article
The double-sided incremental forming (DSIF) improved the process flexibility compared to other incremental sheet forming (ISF) processes. Despite the flexible nature, it faces the challenge of low geometric precision like ISF variants. In this work, two strategies are used to overcome this. First, a novel method is employed to determine the optimal...
Article
With the aim of further improving the high-temperature tribological properties and extending the application of typical chromium carbide cermet coating, a novel Cr3C2-NiCrCoMo/nano-CeO2 (NCE) composite coating deposited by high-velocity oxygen fuel spray (HVOF) was developed based on the collaborative modification of the multielement alloy adhesive...
Article
With the aim of remanufacturing high-value wear parts of shield tunneling machines, novel Fe-based composite coatings were prepared by collaborative modification with nano-TiC and nano-CeO2 particles. This work aims to improve the wear properties of Fe-based alloy coatings by regulating the morphology and dispersion of TiC through the addition of d...
Article
Despite advances in NiCr + Cr3C2–NiCr coating improving the erosion wear resistance at low impact angles, the deterioration at medium and high impact angles has not been solved for the impeller subjecting to multi–impact angle. Herein the conflict is circumvented by combining the erosion performance of the NiCr and Cr3C2–NiCr under different impact...
Article
Ultrasonic vibration has been applied in the incremental sheet forming process and shows the potential to reduce the forming force and increase the formability, but the constitutive behavior and deformation behaviors of material under the high-frequency vibration are still not completely explained. In the present work, a hybrid constitutive model w...
Article
Full-text available
Purpose Plasma spraying is a mature, efficient, and widely applied surface treatment technology. However, the high-energy consumption and harmful gas emissions are still obstacles to achieving clean production by plasma spraying. Considering that the various process parameters of plasma spraying have great impacts on both on coating performance and...
Article
Cr3C2-NiCr coating has been extensively applied on the surface of components to resist high temperature oxidation, hot corrosion and erosion. The service properties of multi-layer Cr3C2-NiCr coatings deposited by HVOF are highly correlated with cyclic heating and cooling effects and subsequent residual stress distribution during the coating deposit...
Article
Abstrac In order to reduce the manufacturing cycle and improve the forming performance of the incremental sheet forming (ISF) process, a hybrid manufacturing process that combines thermal spraying and incremental forming process was firstly proposed. The effects of different thermal spraying parameters on the forming properties and mechanical prope...
Article
Full-text available
Plasma spraying is an energy intensive manufacturing process to provide function coatings. As such, energy consumption analysis always is promising for the development of green plasma spraying. In this study, a systematic energy consumption model of plasma spraying was presented considering various working states and processing parameters with unit...
Article
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Single point incremental forming (SPIF) has revolutionized sheet shaping for small-batch production, providing an economical and effective alternative to sheet stamping and pressing, which can be cumbersome and expensive. Efficient data-driven prediction of forming forces can significantly benefit process design, development and optimization in SPI...
Article
Full-text available
Incremental sheet forming (ISF) is an advanced sheet forming process featured with great flexibility, enhanced formability, and high efficiency especially for small batch production. However, the poor surface finish and the large forming load are the main shortages of ISF, especially for the difficult-to-form materials such as titanium sheets. In t...
Article
Thermally sprayed cermet coatings are widely used to improve the wear resistance of component surfaces. In this study, Cr3C2-NiCr cermet coatings were deposited by shroud plasma spraying (SPS) and high velocity oxygen-fuel (HVOF) spraying. The erosion test of both coatings was carried out with simulating the environment of multi-angle high-speed er...
Article
Full-text available
Advanced manufacture technologies, oriented to implants featured with high reliability, low cost and high biocompatibility, are key approaches to advance the rehabilitation efficacy and shorten the recovery period of patients. Considering the shortage of current fabrication processes, the incremental sheet forming (ISF) which is featured as a flexi...
Article
Full-text available
Incremental sheet forming (ISF) has received increasing attention with its advantages of economy and flexibility for small batch sheet metal parts. However, the excessive thinning may be resulted at large forming angles for complex parts, which cannot meet the design requirements and seriously impedes the industrial application of ISF. Although the...
Article
Full-text available
The integration of ultrasonic vibration into the incremental sheet forming (ISF) process can significantly reduce the forming force and bring other benefits. However, the effects of ultrasonic vibration on the forming force and the surface quality during the forming process have not been clearly explained. To this end, a series of experiments were...
Article
Full-text available
The unsatisfied surface quality seriously impedes the wide application of incremental sheet forming (ISF) in industrial field. As a novel approach, the interpolator method is a promising strategy to enhance the surface quality in ISF. However, the mechanism for the improvement of surface quality and the influence of interpolator properties on surfa...
Article
Full-text available
Incremental Sheet Forming (ISF) is a promising forming process for rapid prototype and small batch production of complex 3D shapes due to the enhanced flexibility, increased formability and the reduced forming force. However, the efficient prediction of forming forces in three directions is insufficient, which is critical to achieve the feed-back c...
Article
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The theoretical and technological achievements in the damage mechanism and evaluation model obtained through the national basic research program “Key Fundamental Scientific Problems on Mechanical Equipment Remanufacturing” are reviewed in this work. Large centrifugal compressor impeller blanks were used as the study object. The materials of the bla...
Article
Homogeneous coatings cannot meet the overall erosion-resistance requirements for an entire blade since materials present different erosion resistances at various impact angles. In this work, NiCr-Cr3C2 coatings with different NiCr contents were prepared on FV520B steels through atmospheric plasma spraying (APS) by using a double-channel powder feed...
Article
Full-text available
The introduction of ultrasonic vibration is proved to be beneficial for the reduced force and improved formability for sheet forming processes. However, the vibration-induced material behavior is still not satisfactorily explained. The objective of this work is to investigate the effect of the ultrasonic vibration on the material flow characteristi...
Article
Incremental sheet forming (ISF), as a flexible rapid prototyping technology, has great potential in the production of small-volume complex sheet parts. The research on the energy consumption of ISF is beneficial to the determination of the most energy-saving process parameters. First, the total power of the machine tool is broken down into standby...
Article
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The application of high-frequency vibration on the incremental forming process could cause changes in the plasticity of material which may contribute to the reduction of forming force, the increase of formability, and the improvement of surface finish. The present work aims to deepen the understanding of the softening effect to facilitate the accur...
Article
The geometric accuracy is a key quality indicator for the application of flanging by incremental sheet forming (ISF), namely incremental flanging (IF). As a local loading forming process, the deformation process in IF is different from that in conventional flanging formed by press-working operation in which considerable geometric error can be intro...
Article
Full-text available
The selection of machine tool and process parameters plays a crucial role in the energy consumption in manufacturing processes such as incremental sheet forming (ISF) process. The analysis of how the process parameters influence the energy required during ISF processes will not only provide opportunity to reduce the environmental consequences, but...
Article
Full-text available
Incremental sheet forming (ISF) is a promising method for forming metal sheets, by which parts can be manufactured without the use of dedicated dies. However, the process has not been widely used for industrial application due to the unsatisfactory service performance of the formed parts. This paper focuses on improving the thickness distribution a...
Article
Full-text available
The incremental sheet forming (ISF) is an innovative dieless forming process featured with high formability and short lead time which is suitable for rapid prototyping and small volume production. The integration of ultrasonic (US) vibration into the ISF process can significantly reduce the forming force and bring other benefits. In this work, the...
Article
A new completely biodegradable sisal fiber–starch packing composite was proposed. The effects of fiber content and alkaline treatment on the cushioning property of the composites were studied from energy absorption efficiency, cellular microstructure and compatibility between fiber and starch. With increasing fiber content, the nest structure of co...
Article
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Cutter back-off and vibration are easily generated when machining of titanium alloy thin-walled parts due to its low rigidity, which has become the bottleneck for processing titanium alloy thin-walled parts. In order to investigate whether the impact force of air jet can reduce the part deformation and the vibration during machining process or not,...
Article
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In the aviation industry, flexural distortion of thin-walled aeronautic parts after machining processes is inevitable, especially for high-strength aluminum alloy. To satisfy the accuracy requirement for subsequent assembly processes, the distorted parts have to be corrected. Bilateral rolling operation has been proved to be an effective method for...
Article
Full-text available
Titanium alloys are attractive materials for aerospace, biomedical and chemical engineering due to their excellent combined performance of high specific strength and fracture resistant characteristics. Drilling titanium alloys is essential to the bolted/rivet connection in the assembly of aerospace parts. This paper outlines a comprehensive analysi...
Article
Full-text available
This paper presents a detailed literature review on the current research of incremental sheet forming relating to deformation mechanism, modelling techniques, forming force prediction and process investigations. First, a review of the fundamental deformation mechanism and formability in incremental sheet forming (ISF) is provided. Subsequently, the...
Article
A microgripper capable of accurately releasing or clamping the microgold wire for ultrasonic bonding is a key component in integrated circuit and light-emitting diode wire bonders. A novel gripper with a piezoelectric (PZT) stack and flexible mechanism is presented. A dynamic model of the PZT gripper is established, and a method of suppression cont...
Article
Ti-6Al-4V is widely used in the aerospace industry, and the laser deposition shaping of Ti-6Al-4V is considered as an efficient method for manufacturing complex structural components. However, the components manufactured by laser deposition shaping face problems of distortion and cracking. In order to avoid these problems, ultrasonic impact peening...
Article
Full-text available
Incremental sheet forming (ISF) is a promising manufacturing technology in which complex 3D shapes can be formed with one simple tool. Compared to conventional forming processes, for complex shapes, it is more flexible and economical with higher formability and shorter lead time. Therefore, ISF is ideally suitable to rapid prototype and small-batch...
Article
Full-text available
Incremental sheet forming (ISF) is a promising manufacturing process in which flat metal sheets are gradually formed into 3D shapes using a generic forming tool. To further improve the forming accuracy and formability, an ultrasonic-assisted incremental forming process has been proposed. This study aims to explore how the superposition of ultrasoni...
Conference Paper
Laser deposition shaping is widely used to strengthen and repair the Ti-6Al-4V thin-walled parts. However, significant distortion was inevitable for these parts during laser deposition process because of high temperature gradient and rapid thermal cycles produced by the laser heat source. Firstly, to investigate the distortion characteristics, lase...
Article
Full-text available
Incremental sheet forming (ISF) is a highly flexible sheet forming process, but it suffers from poor geometric accuracy. This paper presents a feedback control strategy using model predictive control (MPC) to obtain improved geometric accuracy in ISF. Based on the incremental deformation mechanism of ISF, a novel model for shape state prediction ha...
Article
Full-text available
Incremental sheet forming (ISF) is a promising manufacturing process that features benefits of reduced forming forces, enhanced formability and greater process flexibility. It also has a great potential to achieve economic payoff for rapid prototyping applications and for small quantity production in various applications. However, limited research...
Conference Paper
The process of incremental forming involves moving a stylus tool gradually over sheet of metal. It is a promising way to manufacture spare parts, but is physically a slow process, and simulation of the process by finite element modelling is also very slow. It is of interest to obtain an analytical method to predict changes in strain caused by a too...
Article
Full-text available
As a critical product quality constraint, surface roughness is regarded as a weak point in incremental sheet forming (ISF). It is of great importance to identify the impact of forming parameters on the surface roughness and optimize the surface finish at the production stage. This paper proposes a systematic approach to modeling and optimizing surf...
Article
Full-text available
Incremental sheet forming (ISF) is a new promising manufacturing technology with high potential to shape complex three-dimensional parts by using a relative small tool. However, ISF is presently limited due to non-uniform thickness distribution of formed parts, especially excessive thinning on severely sloped regions. This typically leads to fractu...
Article
Full-text available
Incremental sheet forming (ISF) has been attractive during the last decades because of its greater flexibility, increased formability and reduced forming forces. However, traditional finite element simulation used for force prediction is significantly time consuming. This study aims to provide an efficient analytical model for tangential force pred...
Article
Full-text available
Incremental sheet forming (ISF) is a promising forming process in which complex 3D shapes are formed from a sheet of metal using a simple moving tool. The efficient prediction of contact forces in ISF is desirable to monitor the forming process, prevent failure, and implement on-line control and process optimization. However, traditional Finite Ele...
Article
Full-text available
Incremental Sheet Forming (ISF) is a new-emerging sheet forming process well suited for small batch production or prototyping because it does not need any dedicated dies or punches. In this forming process, sheet metal parts are formed by a smooth-end tool in a stepwise way, during which plastic deformation is highly localized around the tool end....
Article
Incremental sheet forming (ISF) is a new promising technology due to its flexibility and low-cost tooling properties compared with conventional forming processes. However, a common technical problem encountered in ISF is non-uniform thickness variation of formed parts, particularly excessive thinning on severely sloped regions, which may lead to th...
Article
Full-text available
ncremental sheet forming (ISF) is a new promising technology due to its flexibility and low-cost tooling properties compared with conventional forming processes. However, it is only suitable for small-batch production because of its incremental feature inducing relative long forming time. Presently, widespread usage of the process is restricted by...
Article
Full-text available
Incremental sheet forming (ISF) has demonstrated its high potential to shape complex three-dimensional components without using specific tooling, thus enabling product customization, cost reduction and efficiencies. This paper presents an experimental campaign to investigate AA7075-O aluminum alloy sheet forming using single point incremental formi...
Article
Full-text available
Incremental sheet forming (ISF) is a promising forming process perfectly suitable for manufacturing customized products with large plastic deformation by using a simple moving tool. Up to now, however, the effects of contact conditions at the sheet interface are not well understood. The aim of this work is to study the effect of tool type and size...
Article
Full-text available
In this article, multistage deformation path strategies for single point incremental forming (SPIF) are revisited with the purpose of controlling material flow (improving sheet thickness distribution) and forming a vertical wall surface for cylindrical cups. It is noted that stretching and thinning are two main deformation modes during SPIF. How to...

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