Repozytorium publikacji - Politechnika Gdańska

The face grinding and lapping technology is widely used in the field of the precise and ultraprecise manufacturing. It has become an indispensable technology in the manufacture of many parts. An absence of material restrictions allows machining both metal and non-metallic materials, including technical ceramics [1]. Nowadays there are mainly two kinematic systems in lapping machines [2]. The machining plane-parallel surfaces is executed on double-sided lapping machines. These kind of machine tools have a planetary system. In case of one-side lapping, the standard systems with conditioning rings are mostly used. The tool (lapping plate) has a significant influence over a dimensional and profile accuracy, as well as over a surface quality of workpiece. During machining, the constant profile wear must be ensured. Previous studies on one-sided lapping allow to state that not only parameters of lapping elements (i.e. properties of workpiece, abrasive grains and lapping plate) impact on a lapping efficiency. Influential are also kinematics and dynamics of the process. It is crucial to control an average velocity of lapping (v), a distribution of tangential acceleration (at), a nominal pressure (p), a lapping time (t) and disposal of workpiece in separator [3, 4]. Based on kinematics equations and the tribological models, the dimensionless distribution of the material removal volume and the trajectories of abrasive grains cutting on the lap can be numerically simulated. Obtained information about excessive wear on lapping plate was the starting point to work out non-standard, single-plate lapping systems.

Autorzy

• prof. dr hab. inż. Adam Barylski link otwiera się w nowej karcie ,
• dr inż. Norbert Piotrowski link otwiera się w nowej karcie