Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1989-05-15
1990-03-06
Schmidt, Frederick R.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51281C, B24B 100
Patent
active
049054180
ABSTRACT:
A process is applied for grinding cams of a camshaft (12) by means of a numerically controlled camshaft grinding machine (10). The camshaft (12) is arranged in a workpiece mounting (11) rotatably at preset angular velocity (.omega.) in predetermined angle steps about its longitudinal axis. A grinding wheel slide (17) with a grinding wheel (18) is infeedable in an axis (20) vertical to the longitudinal axis in preset steps. A grinding wheel (18) is selected as to its condition for machining as a function of the geometry, the material and the required surface condition of the camshaft (12) and cams (30), and the infeed of the grinding wheel (18) is set.
In order to achieve a minimum grinding time while taking into account various process-related restrictions, a maximum possible infeed for a minimum grinding time is determined using the maximum relative metal removal rate and the preset cam geometry, and--if necessary taking into account restrictions with regard to the chip cavity repletion conditions and the grain load--the maximum infeed for grinding the camshaft (12) is set (FIG. 1).
REFERENCES:
patent: 4603514 (1986-08-01), Suzuki et al.
patent: 4621463 (1986-11-01), Komatsu et al.
Werkstatt und Betrieb, 118 (1985) 8 pp. 443-448.
Werkstatt und Betrieb, 119 (1986) 8 pp. 655-660.
Werkstatt und Betrieb, 120 (1987) 4 pp. 269-274.
Werkstatt und Betrieb, 121 (1988) 3 pp. 201-206.
Yegenoglu Dissertation "Berechnung Von Topographiekenngrossen zur Auslegung Von CBN-Schleifprozessen 1986".
Fortuna-Werke Maschinenfabrik GmbH
Hackler Walter A.
Rachuba M.
Schmidt Frederick R.
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