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1. Unit conversion only，Ensure that the actual length is the same.(When you just want to convert the Unit but keep the same length.) a. Start->Program->Unigraphics V1x.0->UG Command Prompt b. Cd d:ugs150(eds140)ugii c. Ug
1.bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]The precision improvement method IKOAfter the bearing is installed in the main machine，Such as measuring universal-joint bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other
The performance of the mold made of die steel must be guaranteed by a strict production process，The raw materials for making molds must be strictly controlled，Prevent mold from forming early failure of heat treatment cracking and other defects due to material problems。 The control of the raw materials of the mold is carried out from the following aspects： Macroscopic test The chemical composition is decisive in ensuring the properties of steel，But qualified in composition，Can not fully describe the properties of steel，Due to the inhomogeneity of the internal structure and composition of the steel，Macro tests have to a large extent supplemented the deficiencies in this respect。 Macroscopic detection can be observed
Mechanical reliability can be generally divided into structural reliability and mechanism reliability。Structural reliability mainly considers the strength of the mechanical structure and its fatigue due to the influence of load、wear、Failure caused by fracture, etc；The reliability of the mechanism is not mainly concerned with the failure caused by the strength problem，Instead, it considers the failure of the mechanism caused by kinematic problems during operation。 Mechanical reliability design can be divided into qualitative reliability design and quantitative reliability design。The so-called qualitative reliability design is based on fault mode impact and hazard analysis，Targeted application of successful design experience to design products to achieve reliability
In long-term production practice and scientific experiments，Peoples understanding of the changing law of the internal organization state of metals is deepening，Especially from60Since the ages，Application of transmission electron microscopy and electron diffraction techniques，Continuous improvement of various testing techniques，Studying martensite morphology、Substructure and its relation to mechanical properties，Conditions for obtaining martensite with different morphology and substructure，The form of the second phase、size、The influence of quantity and distribution on mechanical properties，Great progress has been made，Based on these new quenching processes are also emerging。 ㈠Cyclic rapid heating quenching quench、Tempered steel strength with austenitic crystals
Abstract：With commercial finite element simulation softwareABAQUS，The thermal coupling finite element method was applied to the aluminum alloy plate for automobile5083-OThe warm drawing process of cylindrical parts is numerically simulated。On this basis，Using experimental design methods，The influence of initial temperature arrangement on drawing capacity was analyzed，The failure mode of the deep drawing parts is given。The research results show that：The temperature of punch bottom and die flange determines the drawing ability of aluminum alloy plate，The die flange is at a higher temperature250℃The bottom of the punch is in room temperature deep drawing mode，Maximum critical punch stroke；The fracture failure of the drawing part may occur near the rounded corner of the punch，
For sealed inlet bearings[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]，Production has been filled in the appropriate grease，Open the bearing to set the seal on the main engine，To prevent grease leakage。This has become a problem with bearing grease。Watch out for too little fat，It can easily lead to a lack of fat or dry friction，Influence life。Grease can cause excessive bearing temperature rise。Large leakage of grease
This system is dedicated to bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Class parts automatic detection equipment。E.g. bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft
(1)The resultant force of the force passes as far as possibleKOYOAxis of bearing，This requires the point of application to be uniform, symmetrical and stable，Force is applied through a sphere or parallel to an axis。 (2)The size of the force should be smooth and even，Not to be impacted，This requires the use of oil pressure or tools that can apply smooth tension or pressure，When the hammer had to be used，It should also be cushioned by softer, non-chipping metals such as copper sleeves，Knock as gently as possible。It is best to use a copper rod or copper hammer for hammering。 (3)Avoid applying force through rolling elements，This requires the inner ring to be installed and removed(Shaft ring)Apply force through the inner ring，When installing and removing the outer ring)tong
JapanIKOImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings arenskbearing，ikobearing，fagbearing，Of good quality，Of course, the price is not cheap。]The inspection and sealing of the rolling mill is now very important、No leakage；The main part of rolled parts during the maintenance of mill furnaces JapanIKOImported bearing[Imported bearing:Simply put, the import bearing agent refers to the sale of an imported bearing brand。The main brands of imported bearings are
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