Betekenis van:
calculating machine

Voorbeeldzinnen

1. Determine the A-values for each axis of each machine. The method of calculating the A-value is described in the ISO standard;
2. Machine tools for turning, having all of the following characteristics: 1. Positioning accuracy with "all compensations available" equal to or less (better) than 6 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents along any linear axis; and 2. Two or more axes which can be coordinated simultaneously for "contouring control"; Note: 2B001.a. does not control turning machines specially designed for the production of contact lenses. b. Machine tools for milling, having any of the following characteristics:
3. Machine tools for milling, having any of the following characteristics: 1. Having all of the following: a. Positioning accuracy with "all compensations available" equal to or less (better) than 6 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents along any linear axis; and
4. Machine tools for grinding, having any of the following characteristics: 1. Positioning accuracies with "all compensations available" equal to or less (better) than 4 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents along any linear axis; or
5. pumps incorporating measuring devices, of heading 8413; weight-operated counting and checking machinery, or separately presented weights for balances (heading 8423); lifting or handling machinery (headings 8425 to 8428); paper or paperboard cutting machines of all kinds (heading 8441); fittings for adjusting work or tools on machine tools, of heading 8466, including fittings with optical devices for reading the scale (for example, optical dividing heads) but not those which are in themselves essentially optical instruments (for example, alignment telescopes); calculating machines (heading 8470); valves and other appliances of heading 8481; machines and apparatus (including apparatus for the projection or drawing of circuit patterns on sensitised semiconductor materials) of heading 8486;
6. Spindle"run-out" and "camming" less (better) than 0,0004 mm TIR; and b. Angular deviation of slide movement (yaw, pitch and roll) less (better) than 2 seconds of arc, TIR over 300 mm of travel. c. Machine tools for grinding, having any of the following characteristics: 1. Having all of the following: a. Positioning accuracy with "all compensations available" equal to or less (better) than 4 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents along any linear axis; and
7. Jig grinders that do not have a z-axis or a w-axis with an overall positioning accuracy less (better) than 4 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents. Note 1: 2B201 does not control special purpose machine tools limited to the manufacture of any of the following parts: a. Gears; b. Crankshafts or camshafts; c. Tools or cutters; d.
8. Machines designed specifically as jig grinders that do not have a z-axis or a w-axis, with a positioning accuracy with "all compensations available" less (better) than 4 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents. 3. Surface grinders. d. Electrical discharge machines (EDM) of the non-wire type which have two or more rotary axes which can be coordinated simultaneously for "contouring control"; e. Machine tools for removing metals, ceramics or "composites" having all of the following characteristics:
9. Overall positioning accuracy on the x-axis more (worse) than 30 μm. b. Machine tools for grinding, having any of the following characteristics: 1. Positioning accuracies with "all compensations available" equal to or less (better) than 4 μm according to ISO 230/2 (1988) [1] Manufacturers calculating positioning accuracy in accordance with ISO 230/2 (1997) should consult the competent authorities of the Member State in which they are established. or national equivalents along any linear axis; or 2. Two or more contouring rotary axes. Note: 2B201.b. does not control the following grinding machines: a. Cylindrical external, internal, and external-internal grinding machines having all of the following characteristics: 1. Limited to cylindrical grinding; 2. A maximum workpiece outside diameter or length of 150 mm; 3. Not more than two axes that can be coordinated simultaneously for "contouring control"; and 4. No contouring c axis; b. Jig grinders with axes limited to x, y, c and a where c axis is used to maintain the grinding wheel normal to the work surface, and the a axis is configured to grind barrel cams; c. Tool or cutter grinding machines with "software" specially designed for the production of tools or cutters; or d. Crankshaft or camshaft grinding machines. 2B204 "Isostatic presses", other than those specified in 2B004 or 2B104, and related equipment, as follows: a. "Isostatic presses" having both of the following characteristics: 1. Capable of achieving a maximum working pressure of 69 MPa or greater; and 2. A chamber cavity with an inside diameter in excess of 152 mm; b. Dies, moulds and controls, specially designed for "isostatic presses" specified in 2B204.a. Technical Note: