1. A method for machining a superficial portion of a laminate with a machine tool having a depth limiter that restricts a maximum machining depth of the machine tool, the method comprising:
securing a guide frame that has an inner guide contour and restricts a maximum dimension of the superficial portion, over the superficial portion;
fixing the guide contour relative to the guide frame;
placing the machine tool within the guide frame in contact with the superficial portion; and
machining the superficial portion while guiding the machine tool by means of the guide contour.
2. The method according to claim 1, wherein the superficial portion has a recess, the method further comprising:
inserting into the guide contour a probe tool which is shaped corresponding to the recess and can be moved inside the guide contour in a vertical direction to the superficial portion;
locking the probe tool in the recess; and
machining the superficial portion by moving the guide contour and the probe tool relative to the guide frame in at least one direction parallel to the superficial portion.
3. The method according to claim 1, wherein the guide frame is secured to an attachment member, adjacent to the superficial portion, of the laminate.
4. The method according to claim 1, wherein the guide frame is secured by a suction attachment member of at least one suction cup in the suction attachment member.
5. The method according to claim 1, further comprising:
setting the maximum machining depth corresponding to an overall thickness of at least one upper layer of the laminate.
6. The method according to claim 4, further comprising:
detaching the at least one upper layer in the superficial portion.
7. The method according to claim 5, further comprising:
replacing the detached at least one upper layer by a substitute material wherein the substitute material comprises at least in part aluminum or an aluminum alloy.
8. The method according to claim 4, wherein the maximum machining depth is preset corresponding to a total thickness of the laminate.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of improving the appearance of foaming injection molding product, comprising the following steps of:
closing the moving mold and the fixed mold, and setting a clamping force on the closed mold, wherein a mold cavity is formed between the moving mold and the fixed mold;
inflating the mold cavity with high pressure and high temperature gas until the air pressure in the mold cavity reaches 2-25 MPa and the temperature of the high pressure and high temperature gas is between 60-200\xb0 C., then injecting molten resin that contains foaming agent into the mold cavity while continuously inflating high pressure and high temperature gas; and
after injection completed, stopping inflating high pressure and high temperature gas and simultaneously releasing pressure, wherein the step of releasing pressure includes the step of opening the mold.
2. The method according to the claim 1, wherein inflating the mold cavity with high pressure and high temperature gas until the air pressure in the mold cavity reaches 4-7 MPa.
3. The method according to the claim 1, wherein inflating the mold cavity with high pressure and high temperature gas until the air pressure in the mold cavity reaches 16-25 MPa.
4. The method according to the claim 1, wherein the temperature of the high pressure and high temperature gas is between 80-120\xb0 C.
5. The method according to the claim 1, wherein the total time of inflating the mold cavity with high pressure and high temperature gas is 3-15 s.
6. The method according to the claim 5, wherein the total time of inflating the mold cavity with high pressure and high temperature gas is 5-8 s.
7. The method according to the claim 1, wherein injecting the molten resin that contains foaming agent into the mold cavity occurs after inflating the mold cavity with high pressure and high temperature gas lasts 1-3 s.
8. The method according to the claim 1, wherein the step of opening the mold is processed with a delay of 0.2-2 s after the injection.
9. The method according to the claim 1, wherein the step of releasing pressure includes the gas emission in the mold cavity through the gaps between the parting surfaces of the mold and between the inserts in the mold.
10. The method according to the claim 1, wherein only one slit is opened between the moving mold and the fixed mold at the beginning of opening the mold, while the central non-solidified molten resin along wall thickness in product expands and foams to a desired thickness, then cooling and curing are carried on.
11. The method according to the claim 10, wherein the width of the slit is 0.5-3 mm.
12. The method according to the claim 1, wherein the molten resin is of the type of polyolefin, and the foaming agent is of the type of sodium bicarbonate or azo components, and the weight percentage of foaming agent in the molten resin equals to 0.5-4%.
13. The method according to the claim 12, wherein said polyolefin resin contains rubber and elastomer with improved impact property; and 2-30% filler with improve rigid, such as talcum powder, calcium carbonate, mica, wollastonite and any materials which can be used to manufacture appearance parts.