In domestic

the quality of plunger hole in aviation piston pump is quite poor and the production efficiency is quite low at present. In order to solve those problems

spherical reamer is put forward after studying foreign similar products processing experience. Based on well centered spherical center

the stress could be well distributed and the resistance could be well reduced

and this research improved the traditional structure of reamer. By adjusting its shape

size

material

wear resistance etc

new structure design of reamer is developed. Compared with the existing processing way

spherical reamer can evidently improve the cylindricity and surface roughness. Meanwhile

the process of producing plunger hole with spherical reamer is more economical and practical.