The A&Q about surface roughness tester

2017-12-20 16:07:49 Shandong iPRE Detection Technology Co.,Ltd

1. What is a portable roughness measuring instrument? 

A: the portable roughness measuring instrument is a small, convenient surface roughness measuring instrument. It is widely used in the processing field or in the measuring room for further analysis.The ribo-series roughness meter is a portable roughness measuring instrument, which can be carried to any area requiring measuring surface roughness. 

2.How can a roughness meter be used to measure those aspects? 

A: it can measure the surface roughness of various machining surfaces, including oil pump nozzle, crankshaft, camshaft, cylinder head of cylinder block, cylinder liner, cylinder hole, piston hole and so on.It can also be applied to the measurement of PS, the setting and adjustment of on-line detection machine tool and the wear or loosening of tool in the process of testing and processing. 

3. What is the definition of surface roughness? 

A: GB/fl031-1995 regulation, the surface roughness is processing surface with smaller spacing of gu feng and microcosmic geometry features, namely surface micro roughness (according to the distance between two wave peak or valley adjacent under LMRN).Surface roughness accurately reflects the concept of surface microscopic geometry, which is the degree of surface roughness. 

4.What is the microscale? 

Answer: in the process of mechanical parts cutting, cutting tool or grinding wheel left scar, chip separation of plastic deformation and the factors such as machine tool vibration, can make the surface of the parts form tiny peak valley. These tiny peak valley, the degree and the distance between condition is known as micro roughness, also known as surface roughness, it is a kind of microcosmic geometry error.

5.How is surface roughness formed? 

Answer: the surface roughness is generally adopted by the processing methods and other factors, formed by such as in the processing of the friction between cutter and workpiece surface, chip separation when plastic deformation of metal in the surface layer and the high frequency vibration in the process system.Because of the different processing methods and workpiece materials, there are differences in the depth, density, shape and texture of the processed surface.Cooperate with the nature of the surface roughness and mechanical parts, wear resistance, fatigue strength, contact stiffness, vibration and noise, etc. There is a close relationship, service life and reliability of mechanical products have important influence. 

6.What is the surface waviness? 

Answer: the surface waviness is the geometric error of the surface geometry which is greater than the surface roughness but less than the surface geometry error, and is the geometric error between the micro and the macro.It is formed by the vibration of machine tool and tool system during machining process.Surface waviness directly affects mechanical properties of parts, such as contact stiffness, fatigue strength, bonding strength, abrasion resistance, vibration resistance and sealing.