Abstract：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.
2017, 
