Abstract: A pressure casting machine can be configured to mold a molten material into a workpiece. The pressure casting machine can include a vacuum chamber and a pressure casting mechanism coupled to the vacuum chamber. The vacuum chamber can include a processing section having a top wall and a bottom wall opposite to the top wall, a first gate configured to seal the processing section, and a first vacuum pump coupled to the processing section. The pressure casting mechanism can include a first driver positioned adjacent to the top wall, a first core received in the processing section and coupled to the first driver, a second core received in the processing section, and a plurality of pushing members received in the processing section. The second core can be coupled to the bottom wall and opposite to the first core. The pushing members can be coupled to the top wall.

Abstract: A clamping apparatus includes a clamping member, a cylinder assembly and a transmission assembly. The cylinder assembly includes a cylinder, a sealing head and a limiting member. The sealing head defines a gas channel connected to the inner of the cylinder. The limiting member includes a limiting portion fixed to the cylinder, which includes an inner surface having a frustoconical shape. The clamping member is received in the limiting member, and includes a frustoconical shape clamping portion. The transmission assembly includes a piston shaft, a piston and an elastic member. The piston and the elastic member are both received in the cylinder. The elastic member is resisted between the piston and the limiting member. One end of the piston shaft away from the piston is connected to the clamping portion. The clamping member defines a clamp hole in middle.

Abstract: A method of making a Zr-rich amorphous alloy article includes providing a Zr-rich master alloy made of an Zr—Cu—Al—Ni—Nb alloy, in which the purity of the raw Zr is substantially in a range of 98% to 99.9%; providing a vacuum induction furnace, and melting the Zr-rich master alloy in the furnace at a temperature in a range of 1100 degrees Celsius to 1200 degrees Celsius; cooling the master alloy to a temperature in a range from 800 degrees Celsius to 900 degrees Celsius in 30 min to 40 min; casting the master alloy into ingots, and then cooling the ingots to a temperature in a range from 200 degrees Celsius to 350 degrees Celsius; and die casting the alloy ingots to obtain Zr-rich amorphous alloy articles with thicknesses in a range of 0.5 mm to 2 mm. A Zr-rich amorphous alloy article made by the above-mentioned method is further provided.

Abstract: An exemplary brittle non-metallic workpiece (70) is made by the laser beam (31), a cutting surface (701 ) of the brittle non-metallic workpiece has no micro cracks. A method for making the brittle non-metallic workpiece includes: focusing a laser beam on the brittle non-metallic substrate to form an elliptic beam spot; driving the laser beam to move along a predetermined curved cutting path, making a center of a major axis of the elliptic beam spot intersecting along the predetermined curved cutting path and the major axis being tangent to the predetermined curved cutting path at the intersecting point; a coolant stream following the elliptic beam spot to move, thus producing a crack in the brittle non-metallic substrate corresponding to the predetermined curved cutting path; separating the brittle non-metallic substrate along the crack. A laser cutting device (40) for making the same is also provided.

Abstract: A method of making a Zr-rich amorphous alloy article includes providing a Zr-rich master alloy made of an Zr—Cu—Al—Ni—Nb alloy, in which the purity of the raw Zr is substantially in a range of 98% to 99.9%; providing a vacuum induction furnace, and melting the Zr-rich master alloy in the furnace at a temperature in a range of 1100 degrees Celsius to 1200 degrees Celsius; cooling the master alloy to a temperature in a range from 800 degrees Celsius to 900 degrees Celsius in 30 min to 40 min; casting the master alloy into ingots, and then cooling the ingots to a temperature in a range from 200 degrees Celsius to 350 degrees Celsius; and die casting the alloy ingots to obtain Zr-rich amorphous alloy articles with thicknesses in a range of 0.5 mm to 2 mm. A Zr-rich amorphous alloy article made by the above-mentioned method is further provided.

Abstract: An exemplary measuring device (100) for measuring aspects of objects includes a first contour measuring probe (10), a second contour measuring probe (20) and a processor (30). The first contour measuring probe (10) has a first tip extension (16) and a first displacement sensor (19). The first tip extension (16) is slidable in a first direction. The first displacement sensor (19) is used to sense a displacement of the first tip extension (16). The second contour measuring probe (20) has a second tip extension (26) and a second displacement sensor. The second tip extension (26) is slidable in the first direction. The second displacement sensor is used to sense a displacement of the second tip extension (26). The processor (30) is electrically connected to the first displacement sensor (19) and the second displacement sensor respectively.

Abstract: An exemplary contour measuring probe includes a guide (12), a movable rack, a counter-balancing mechanism, a linear measuring scale (24), and a displacement sensor (26). The movable rack comprises a tip extension (20) for touching a surface of an object. The tip extension (20) is pushed to move towards the object under a gravitational force acting on the movable rack. The counter-balancing mechanism is configured to partially counter balance the gravitational force acting on the movable rack. The linear measuring scale (24) displays values of displacements of the tip extension (20). The displacement sensor (26) detects and reads the displacement values displayed by the linear measuring scale (24).

Abstract: An exemplary contour measuring method for measuring aspects of objects includes: (1) providing a measuring device including two contour measuring probes and a processor, the contour measuring probe having a tip extension and a displacement sensor used to sense a displacement of the tip extension, the processor being electrically connected to the displacement sensors; (2) driving two tip extensions to contact two opposite surfaces of an object respectively; (3) driving the two tip extensions to move and contacting the two opposite surfaces of the object respectively, while the displacement sensors sending the displacement information on the tip extensions to the processor; (4) computing a cross-section of the object by the processor according to the displacement information on the tip extensions; (5) repeating the step (3) and (4), the processor computing a plurality of cross-sections of the object, the cross-sections compiled to obtain aspects of object.

Abstract: An exemplary measuring device includes a standard element, a first contour measuring probe, and a controller. The standard element has a first standard plane opposite to a measured object. The first contour measuring probe has a tip extension. The controller is electrically connected to the first contour measuring probe. The tip extension contacts the first standard plane during a measuring process. In addition, a method for using the measuring device is also provided.

Abstract: An exemplary base includes a first elastic element, a second elastic, two first adjustable spacers and two second adjustable spacers. The first elastic element includes two first spaced plates and a first connecting element for connecting the two first spaced plates. The second elastic element includes two second spaced plates and a second connecting element for connecting the two second spaced plates. The first connecting element and the second connecting element are not in a plane. Two first adjustable spacers connect the two first spaced plates and adjust a distance between the two first spaced plates. Two second adjustable spacers connect the two second spaced plates and adjust a distance between the two second spaced plates.

Abstract: An exemplary contour measuring method for measuring aspects of objects includes: (1) providing a contour measuring probe (10) comprising a tip extension (16), a displacement sensor (19), and a processor (119) connected to the displacement sensor, the tip extension being slidable in a first direction; (2) driving the tip extension to move so as to contact with the object at a first predetermined point, and recording a coordinate of the first predetermined point in the processor; (3) driving one of the tip extension and the object to move, thus, the tip extension contacting with the object at a second predetermined point, the displacement sensor sensing a displacement of the tip extension along the first direction and sending the displacement to the processor, and the processor recording a coordinate of the second predetermined point; and (4) repeating the step (3), the processor recording a series of measured coordinates of points.

Abstract: An exemplary contour measuring probe (10) includes a tube guide (12), a tip extension (20), a pair of hollow tubes (16), a plurality of pipes (104, 106), a linear measuring scale (18), and a displacement sensor (19). The tip extension (20) is configured to touch a surface of an object (50). The hollow tubes (16) are configured to be driven by a flux of air to push the tip extension (20) to move. The pipes (104, 106) are obliquely disposed in a tube guide (12) relative to the hollow tubes (16). The pipes (104, 106) allow the flux of air to be pumped on a sidewall of the hollow tubes (16). A part of the flux of air is ejected out of the tube guide (12). The linear measuring scale (18) and the displacement sensor (19) are respectively fixed relative to one of the tube guide (12) and the tip extension (20). The linear measuring scale (18) displays values of displacements of the tip extension (20). The displacement sensor (19) detects and reads the displacement values displayed by the linear measuring scale (18).

Abstract: An exemplary machining method used to machine a predetermined curved surface on a workpiece (46) comprising: (1) providing a machining apparatus (30), the machining apparatus including a vertical tool spindle (40) for mounting a tool (42) and a workpiece spindle (44) being rotatable in an axis thereof, the tool spindle being rotatable relative to a vertical direction, a rotational axis of the workpiece spindle is oblique relative to a rotational axis of the tool spindle; (2) mounting the workpiece onto the workpiece spindle; (3) driving the spindle and the workpiece spindle to rotate, and positioning the tool corresponding to the workpiece; and (4) driving a machining point of the tool to move on the predetermined curved surface and along a path passing through a top point “P” and any point “Q” of an edge of the predetermined curved surface.

Abstract: An exemplary brittle non-metallic workpiece (70) is made by the laser beam (31), a cutting surface (701 ) of the brittle non-metallic workpiece has no micro cracks. A method for making the brittle non-metallic workpiece includes: focusing a laser beam on the brittle non-metallic substrate to form an elliptic beam spot; driving the laser beam to move along a predetermined curved cutting path, making a center of a major axis of the elliptic beam spot intersecting along the predetermined curved cutting path and the major axis being tangent to the predetermined curved cutting path at the intersecting point; a coolant stream following the elliptic beam spot to move, thus producing a crack in the brittle non-metallic substrate corresponding to the predetermined curved cutting path; separating the brittle non-metallic substrate along the crack. A laser cutting device (40) for making the same is also provided.

Abstract: An exemplary machining apparatus (30) includes a tool spindle (40) for mounting a tool (42) and a workpiece spindle (44). The tool spindle is rotatable relative to a vertical direction. The workpiece spindle is rotatable in an axis thereof. A rotational axis of the workpiece spindle is oblique relative to a rotational axis of the tool spindle.

Abstract: An exemplary machining method used to machine a predetermined curved surface on a workpiece (46) comprising: (1) providing a machining apparatus (30), the machining apparatus including a vertical tool spindle (40) for mounting a tool (42) and a workpiece spindle (44) being rotatable in an axis thereof, the tool spindle being rotatable relative to a vertical direction, a rotational axis of the workpiece spindle is oblique relative to a rotational axis of the tool spindle; (2) mounting the workpiece onto the workpiece spindle; (3) driving the spindle and the workpiece spindle to rotate, and positioning the tool corresponding to the workpiece; and (4) driving a machining point of the tool to move on the predetermined curved surface and along a path passing through a top point “P” and any point “Q” of an edge of the predetermined curved surface.

Abstract: An exemplary contour measuring device (100) includes a pair of guide rails (13), a movable fixture (14), a first probe (15), a second probe (16), and an error correcting unit (17). The movable fixture is movably disposed on the guide rails. The first probe is configured for measuring an object along a contour measuring direction and obtaining a first measured contour value from the object to be measured. The second probe is configured for measuring a standard object whose contour is known along the contour measuring direction and obtaining a second measured contour value from the standard object. The error correcting unit is configured for compensating the first measured contour value according to the second measured contour value.

Abstract: An exemplary measuring device (100) for measuring aspects of objects includes a first contour measuring probe (10), a second contour measuring probe (20) and a processor (30). The first contour measuring probe (10) has a first tip extension (16) and a first displacement sensor (19). The first tip extension (16) is slidable in a first direction. The first displacement sensor (19) is used to sense a displacement of the first tip extension (16). The second contour measuring probe (20) has a second tip extension (26) and a second displacement sensor. The second tip extension (26) is slidable in the first direction. The second displacement sensor is used to sense a displacement of the second tip extension (26). The processor (30) is electrically connected to the first displacement sensor (19) and the second displacement sensor respectively.

Abstract: An exemplary contour measuring method for measuring aspects of objects includes: (1) providing a measuring device including two contour measuring probes and a processor, the contour measuring probe having a tip extension and a displacement sensor used to sense a displacement of the tip extension, the processor being electrically connected to the displacement sensors; (2) driving two tip extensions to contact two opposite surfaces of an object respectively; (3) driving the two tip extensions to move and contacting the two opposite surfaces of the object respectively, while the displacement sensors sending the displacement information on the tip extensions to the processor; (4) computing a cross-section of the object by the processor according to the displacement information on the tip extensions; (5) repeating the step (3) and (4), the processor computing a plurality of cross-sections of the object, the cross-sections compiled to obtain aspects of object.

Abstract: An exemplary measuring device includes a standard element, a first contour measuring probe, and a controller. The standard element has a first standard plane opposite to a measured object. The first contour measuring probe has a tip extension. The controller is electrically connected to the first contour measuring probe. The tip extension contacts the first standard plane during a measuring process. In addition, a method for using the measuring device is also provided.