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This applies particularly to the drilling and milling properties.
Ideally, these correspond to the properties of the human bone.
Determination of biomechanical properties To recreate an authentic model of the human skull, which corresponds both in form and in the original feel, as a first step, the mechanical properties of the human skull must be determined.
Other essential factors which have been studied are the machining properties of the human skull bone.
This is necessary to reproduce artificial models with the same mechanical properties later.

Main Contents of Grinding Process Simulation As a complex physical process, grinding process is subject to a number of input factors and produces a variety of physical and mechanical phenomena.
Grinding wheel topography simulation is mainly modeled for specific structure and morphology of modeling of the grinding wheel surface, and implements the grinding simulation in order to analyze the grinding properties of the grinding wheel.
Grinding forces, grinding temperature and grinding vibration produced during grinding are the main factors affecting the grinding quality.
Grinding process simulation can predict the main affecting factors in the grinding process and the process results, and optimize the grinding parameters.
In the area of the simulation of workpiece surface topography, the simulation will be considered the abrasive wear, grinding heat, vibration machine, plastic deformation of the workpiece material and other comprehensive factors, in order to more accurately predict the workpiece processing quality and optimize the process parameters.

Introduction Cemented carbides, also known as hardmetals, are metal-matrix composite materials comprised of individual tungsten carbide grains imbedded in a ductile metal binder matrix of either cobalt or nickel, which lead to excellent mechanical properties, such as high hardness, high resistance, and good toughness[1,2].
However, the physical and mechanical properties of cemented carbides lead to high machining cost and low production efficiency.
YG8 is mainly used as insert tools and wear resistance parts, and its properties are listed in Table 1.
Table 1 Workpiece properties Material Chemical compositions Hardness [HRA] Young’s modulus [KN/mm2] Density [g/cm3] YG8 WC-8%Co 89 600 14.5 – 14.9 The experiment was conducted on high-speed grinder.
However, the unbalance of spindle monitored by SBS increased when grinding parameters are above a certain value, and is considered to be one of factors to affect surface quality, the further investigation is necessary.

In turn, when processing holes with a special lock, the tailstock can be connected to the caliper and receive mechanical feed.
It should be noted that an important factor that affects the optimization process in this case is the cutting modes, which mainly include the feed functions – S, spindle speed – n and cutting depth – t.
As part of the study, the obtained safety margin coefficient makes it possible to increase the efficiency of procedures for studying the main technical and economic properties of forming samples (products).
Hulchuk, Study of the porosity based on structurally inhomogeneous materials Al-Ti, Lecture Notes in Mechanical Engineering (2021) 349-359
Ruban, Investigation of the properties of powder materials using computer modeling, Materials Science Forum, 1038 (2021) 33-39

Obviously, bonding force directly affected the last bonding strength.
High temperature setting may result in over-bonding because of it affects physical and chemical properties of bonding materials and destructs formation of bonding surface.
Fig 3 Placement of overlooking the camera perpendicular to the direction of motion of capillary Fig 4 Calibration version of image Many factors affect bonding quality.
Chinese Journal of Mechanical Engineering, VOL. 43, NO.3, (2007), pp.107-111
[7] Long Zhili, Han Lei and Wu Yunxin: Study of the Effect of Temperature Factor on Thermosonic Bonding Strength.

Based on these, an analysis on various factors which affect the ductility of the columns is conducted.
Moreover carbon fiber is better than the above two in the mechanical properties, but its higher cost.
—Ductility factor.
Made a comparison of the skeleton curve of each specimen, it can be seen that two factors influenced the end-column displacement in various degree.
Next, for different varieties of fiber, the ability of resisting crack and deformation has a bigger distinction due to the difference in its mechanical properties.

To see the change of characteristic of material and physical shape factor the chemical composition factor that the portion of B2O3 in the glass composition is changed.
Relationship between laser factor and material factor.
Heat treatment and glass properties.
The property change of ND cr and field strength of positive ion when B2O3 increases Table 2.
Conclusions The chemical and characteristic factor of glass was affected by composition change.

The pouring temperature and the stirring power remarkablely affect the morphology and size of primary α-Al in semisolid Al alloy slurry.
Introduction Semisolid processing (SSP) is a relatively new technology that offers distinct advantages over other near-net-shape casting processes, such as a more homogeneous microstructure, less porosity and segregation, and improved mechanical properties [1].
The microstructure of the sample was observed on an optical microscope, and MIAPS image analyzing software was used to measure the average equal-area-circle grain diameter and shape factor of primary α-A1.
Fig.2 is the effect of pouring temperature on average equal-area-circle grain diameter and shape factor of primary α-Al in semisolid A356 under certain stirring power.
In addition, reduction of pouring temperature can obviously improve shape factor of primary α-Al under the condition of certain stirring power as shown in Fig.2b, from 0.63 pouring at 650˚C increasing to 0.84 pouring at 615˚C.

The concentration of chain extender, blowing agent (BA) and surfactant were varied and their effects on physical, mechanical and morphological properties of foams were investigated.
Properties of prepared foams.
It is generally known that the mechanical properties of a cellular material mainly depend on its density.
The concentration of chain extender, blowing agent and surfactant were varied and their effects on physical, mechanical and morphological properties of foams were investigated.
W J Seo, H C Jung, J C Hyun, W N Kim, Y-B Lee, K H Choe, S-B Kim, Mechanical, morphological, and thermal properties of rigid polyurethane foams Blown by Distilled Water, J.

Abdullah1,b and Yulfian Aminanda1,c 1Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, P.O Box 10, 50728, Kuala Lumpur, Malaysia.
However, these properties are affected by many factors, such as; material type, cross section, geometry, thickness, length, weight, etc.
The structural geometry of the specimen and the properties of the material used were the same for both experimental and numerical studies.
Moreover the same material properties (aluminium alloy AA6063 T6) were used in order to compare the efficiency, in term of absorbed energy, of each tube.
Cross section and geometry of the structures affect considerably both the energy absorption and the collapse behaviour.