FR2563637A1 - Glass frames - Google Patents

Abstract

Multi-layered material consists of a core (11) of Al(alloy) with a cladded coating (12) of Ti (alloy). The cross-section area of coating to core is 12-60%.

Description

COMPOSITE MATERIAL FOR ORNAMENTAL USE, SUCH AS MOUNT
RE GOGGLES.

 The present invention relates to a composite material for ornamental use; it is more particularly intended to improve the mechanical properties of composite materials of the type comprising titanium inclusions for ornamental applications, such as spectacle frames.

 Various materials of the type coated with titanium inclusions have already been widely used because of the high mechanical strength, the high anti-corrosion power and the light weight of the titanium components. In general, the composite material of this type comprises a titanium or titanium-based alloy core and a nickel or nickel-based or copper-based alloy sheath around the core. Despite these great qualities, a large proportion of titanium for lighter weight causes low plastic deformation and high mechanical strength of the composite material. These drawbacks are thought to come from the hexagonal lattice structure of the titanium crystal. The low plastic deformation does not allow for complicated configuration production and the high mechanical rigidity results from the rapid wear of the tools used for cutting.

 The first object of the invention is to provide in addition to the high mechanical strength of the important anti-corrosion and low weight, a composite material coated with titanium inclusion having the possibility of significant plastic deformation and mechanical resistivity adjusted.

 The second object of the present invention is to provide in addition to the above advantages, a titanium inclusion coated composite material well suited for coating and welding.

According to the first aspect of the present invention, this composite material comprises
a core (or core) of aluminum or alloy with
aluminum base
- And a sheath attached to the core made of titanium or titanium alloy.

According to the second aspect of the present invention, the composite material comprises
an aluminum or aluminum-based alloy core,
an intermediate titanium core or a titanium-based alloy attached to the intermediate core,
an intermediate sheath made of nickel or a nickel-based alloy fixed on the intermediate core,
- And a gold-based sheath or alloy based on gold, platinum or platinum alloy, fixed on the intermediate sheath.

 The manner in which the invention can be realized and the advantages which result therefrom will emerge more clearly from the examples and figures which follow, given as an indication and not a limitation.

 Fig. 1 is a cross-section of an example of linear composite material according to the first aspect of the present invention.

 Fig. 2 is a cross-section of an example of a linear composite material according to the second aspect of the present invention.

 Figure 3 is a graph showing the results of the softening tests.

 Figure 4 is a graph showing the results of the compaction tests.

 Fig. 1 shows an example of a linear composite material in accordance with the first aspect of the present invention. The linear composite material (10) comprises a core (11) made of aluminum or aluminum-based alloy and a sheath (12) made of titanium or titanium-based alloy and attached to the core ( 11).

accord au Japan Industrial Standard ClO70, 1050, 1100, 1200, 3003, 5052, 5056, 5083, 6061, 6063 et 7003 seront utilisés préférentiellement pour la présente invention (voir tableau 1). The transverse surface ratio of the sheath (12) relative to the core (11) should preferably be of the order of 12 to 60%. Aluminum alloys in

agreement with Japan Industrial Standard ClO70, 1050, 1100, 1200, 3003, 5052, 5056, 5083, 6061, 6063 and 7003 will be used preferentially for the present invention (see Table 1).

Table 1 @ = - or less
>'or more

<tb><SEP> Inclusion <SEP> in <SEP>%
<tb> JIS <SEP> If <SEP> Fe <SEP> Or <SEP> Mn <SEP> Mg <SEP> Cr <SEP> Zn <SEP> Bi, Pb, Zr <SEP> Ti <SEP> Other <SEP > Al
<tb><SEP> Zr + Ti, V
<tb><SEP> * <SEP> **
<tb> 1070 <SEP> 0.20 <SEP> 0.25 <SEP> 0.04 <SEP> 0.03 <SEP> 0.03 <SEP> - <SEP> 0.04 <SEP> - <SEP> 0.03 <SEP> 0.03 <SEP> - <SEP> 99.70
<tb><SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP>>
<tb> 1050 <SEP> 0.25 <SEP> 0.40 <SEP> 0.05 <SEP> 0.05 <SEP> 0.05 <SEP> - <SEP> 0.05 <SEP> - <SEP > 0.03 <SEP> 0.03 <SEP> - <SEP> 99.50
<tb><SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP><
<tb> 1100 <SEP> 1.0 <SEP> 0.05 <SEP> 0.05 <SEP> - <SEP> - <SEP> 0.10 <SEP> - <SEP> - <SEP> 0.05 <SEP> 0.15 <SEP> 99.00
<tb>#
<tb><<SEP> 0.20 <SEP><<SEP><<SEP><<SEP><<SEP>>
<tb><SEP> 1200 <SEP> 1.0 <SEP> 0.05 <SEP> 0.05 <SEP> - <SEP> - <SEP> 0.10 <SEP> - <SEP> 0.05 <SEP> 0.05 <SEP> 0.15 <SEP> 99.00
<tb><SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP><<SEP>>
<tb> 3003 <SEP> 0.6 <SEP> 0.7 <SEP> 0.05 <SEP> 1.0 <SEP> - <SEP> - <SEP> 0.10 <SEP> - <SEP> - <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP>#<SEP><SEP>#
<tb><SEP><<SEP><<SEP> 0.20 <SEP> 1.5 <SEP><<SEP><<SEP><
<tb> 5052 <SEP> 0.25 <SEP> 0.40 <SEP> 0.10 <SEP> 0.10 <SEP> 2.2 <SEP> 0.15 <SEP> 0.10 <SEP> - <SEP> - <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb>#<SEP>#
<tb><SEP><<SEP><<SEP><<SEP><SEP> 2.8 <SEP> 0.35 <SEP><<SEP><<SEP><
<tb><SEP> 5056 <SEP> 0.30 <SEP> 0.40 <SEP> 0.10 <SEP> 0.05 <SEP> 4.5 <SEP> 0.05 <SEP> 0.10 <SEP> - <SEP> - <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP>#<SEP><SEP>#<SEP><SEP>#
<tb><SEP><<SEP><<SEP><SEP> 0.20 <SEP> 5.6 <SEP> 0.20 <SEP><<SEP><<SEP><
<tb><SEP> 5083 <SEP> 0.40 <SEP> 0.40 <SEP> 0.10 <SEP> 0.40 <SEP> 4.0 <SEP> 0.05 <SEP> 0.25 <SEP> - <SEP> 0.15 <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP>#<SEP><SEP>#<SEP><SEP>#
<tb><SEP><<SEP><<SEP><<SEP> 1.0 <SEP> 4.9 <SEP> 0.25 <SEP><<SEP><<SEP><<SEP><
<tb> 6061 <SEP> 0.40 <SEP> 0.7 <SEP> 0.15 <SEP> 0.15 <SEP> 0.8 <SEP> 0.04 <SEP> 0.25 <SEP> - <SEP> 0.15 <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP>#<SEP><SEP>#<SEP><SEP>#<SEP><SEP>#
<tb><SEP> 0.8 <SEP><SEP> 0.40 <SEP><<SEP> 1.2 <SEP> 0.35 <SEP><<SEP><SEP><SEP><
<tb><SEP> 6063 <SEP> 0.20 <SEP> 0.35 <SEP> 0.10 <SEP> 0.10 <SEP> 0.45 <SEP> 0.10 <SEP> 0.10 <SEP> - <SEP> 0.10 <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP> 0.6 <SEP><SEP><SEP><SEP><SEP> 0.9 <SEP><SEP><SEP><SEP><SEP><
<tb><SEP> 7003 <SEP> 0.30 <SEP> 0.35 <SEP> 0.20 <SEP> 0.30 <SEP> 0.05 <SEP> 0.20 <SEP> 5.0 <MS> Zn <SEP> 0.20 <SEP> 0.05 <SEP> 0.15 <SEP> ball
<tb><SEP>#<SEP>#
<tb><SEP><<SEP><<SEP><SEP><SEP> 1.0 <SEP><SEP> 6.5 <SEP> 0.05 <SEP><<SEP><<SEP><
<tb><SEP>#
<tb><SEP> 0.25
<tb> * individual ** total
The presence of aluminum or aluminum-based alloy in the core and the reduced inclusions of titanium help to achieve a product well suited to be cut with a minimum of tool abrasion. In addition, the reduced inclusion of titanium compounds develops the possibility of isotropic plastic deformation and as a result, allows the production of complicated configuration. When the ratio of the transverse surfaces of the sheath falls slightly below the ratio described above, too great a difference in strength between the core and the sheath would no longer allow smooth work of the composite materials. Conversely, any ratio of transverse surfaces of the upper sheath to the ratio described above would not allow a correct work of the composite material.

 Fig. 2 shows an example of a linear composite material according to the second aspect of the present invention. The linear composite material (20) comprises a core (21) made of aluminum or aluminum-based alloy, an intermediate core (22) made of titanium or titanium-based alloy and attached to the core (21). ), an intermediate sheath (23) made of nickel or nickel-based alloy and coated with the intermediate ring (22) and a sheath (24) made of gold or a gold-based alloy, platinum or platinum-based alloy and attached to the intermediate sheath (23).

The ratio of the transverse surface of the intermediate core (22) relative to the core (21) should preferably be set in the order of 12 to 60%. Aluminum-based alloys, in agreement with Japan
Industrial Standard 1070, 1050, 1100, 1200, 3003, 5052, 5056, 5083, 6061, 6063 and 7003 will be preferentially used for the present invention.

 In addition to the inherent advantages of the composite material itself, in accordance with the first aspect of the present invention, the presence of an intermediate sheath (23) made of nickel or nickel-based alloy and sheath (24). ) made of gold or alloy based on gold, platinum or platinum-based alloy, allows a good adaptation of the product for coating and welding. The presence of the sheath (24) makes it possible to conveniently produce drawings on each side of the product. In addition, the intermediate sheath (23) placed between the hard intermediate core (22) and the soft sheath (24) gives an intermediate hardness thus significantly improving the working properties and limits the formation of imperfections during the work.

If inter-metal elements develop between the titanium of the intermediate core (22) and the nickel of the intermediate sheath (23) during the temperature treatment, its external diffusion would be stopped immediately by the intermediate sheath (23) without it appearing on the outer surface of the product which would thus spoil the beautiful appearance of the sheath (24). Since the temperature produced by the inter-metallic elements between titanium and nickel is greater than that between titanium and copper or gold and zinc, in the gold-based alloy, a large gap temperature can be chosen for an ideal softening.

 The thickness of the intermediate sheath (23) will preferably be chosen in a range of 10 to 200% of that of the sheath (24). Any intermediate sheath (23) finer than the lower limit would have the effect of not playing any role. An intermediate sheath greater than the upper limit would increase the apparent specific gravitational force of the composite material, thereby weakening the lightweight construction of the intermediate core (22) made of titanium or titanium-based alloy.

Example
Linear samples Nos. 1 to 17 of a composite material having different inclusion percentages were summarized in Table 2. Some of them were subjected to hardening and compaction tests.

 In the production of such samples, a 40 mm outer diameter sheath and a corresponding core were first prepared. After insertion of the sheath onto the core and end-end welding, the combination was repeatedly subjected to tension forces at 75% of the working range followed by intermediate softening at 500 ° C. for 30 minutes, so as to obtain a linear material 2.5 mm in diameter A linear material is then subjected to a final softening at 4800C for three minutes so as to obtain a linear sample. comparisons, a core made of nickel was used for the production of sample No. 17.

 The alloy (12) based on gold (50% gold, 35% copper, 10% zinc, 5% nickel) and 99.8% nickel were fixed one on the other. other in a 1: 1 cross-sectional area ratio. The resulting material is attached to a titanium sheath in a 1: 1 cross-sectional area ratio. Sheath failure occurred during production for samples Nos. 1, 7 and 11. After the break, each sample was subjected to rolling and final drawing, so as to obtain a linear sample of 2.5 mm. of diameter.

 Samples Nos. 1,3,4,6 and 17 were subjected to hardening tests and each linear sample was subjected to a tensile force in given working ratios and the results of which are given in Figure 3.

Samples Nos. 1 to 10 and 17 were subjected to compaction tests Each linear sample is compressed to a thickness of 0.7 mm in a mold
SKD-11 (HRc = 60, final surface = 0.8S), at a compression speed of 1 mm / sec using a transmission oil as lubricant. The necessary force is measured (Figure 4).

 In Fig. 3, the percent working ratios are plotted on the abscissa and the tensile yield strength in kg / mm2 on the ordinate. In Figure 4, the sample numbers are shown on the abscissa and loads in tons on the ordinates.

 As it is clear in the tests, all sheath inclusion ratios below 10% cause surface breakage during production. There is no problem when the inclusion ratio is of the order of 12%. When the inclusion ratio is 70%, a strong hardening is obtained.

An aluminum core causes lower curing and lower pressure than a nickel core, ensuring excellent workability.

 The composite materials according to the invention are particularly suitable for the manufacture of spectacle frames.

Table 2

(Ti) <SEP> (Al)
<tb> Sheath <SEP> Core <SEP> Percentage <SEP> Observe
echan
<SEP> tillon <SEP> of inclusion <SEP> vation
<tb> type <SEP> Limit <SEP> elastic-Type <SEP> LimitedSelect- <SEP> of <SEP><SEP> Sheath
<tb> no.
<Tb>

<SEP> tick <SEP> to <SEP> the <SEP> tick <SEP> to <SEP> la
<tb><SEP> (JIS) <SEP> traction <SEP> (JIS) <SEP> traction <SEP> (%)
<tb><SEP> (k / ow <SEP> - <SEP>
<tb><SEP> 1 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> 10 <SEP> * <SEP><SEP> Rupture
<tb><SEP> 2 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> 15
<tb><SEP> 3 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> 20
<tb><SEP> 4 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> - <SEP> 40
<tb><SEP> 5 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> 55
<tb><SEP> 6 <SEP> 2 <SEP> 48 <SEP> 1100 <SEP> 8.3 <SEP> 70
<tb> 7 <SEP> 2 <SEP> 48 <SEP> 6063 <SEP> 12.5 <SEP> 10 <SEP> Rupture
<tb><SEP> 8 <SEP> 2 <SEP> 48 <SEP> 6063 <SEP> 12, <SEP> 5 <SEP> 25
<tb><SEP> 9 <SEP> 2 <SEP> 48 <SEP> 6063 <SEP> 12, <SEP> 5 <SEP> @ <SEP> 40
<tb><SEP> 10 <SEP> 2 <SEP> 48 <SEP> 6063 <SEP> 12, <SEP> 5 <SEP> 70
<tb><SEP> 11 <SEP> Coating- <SEP> 37 <SEP> 1050 <SEP> 7.1 <SEP> 6 <SEP> Rupture
<tb><SEP> ment
<tb><SEP> 12 <SEP> Coating- <SEP> 37 <SEP> 1050 <SEP> 7.1 <SEP> 12
<tb><SEP> ment
<tb><SEP> 13 <SEP> Coat- <SEP> 37 <SEP> 1015 <SEP> 7, <SEP> 1 <SEP> 15
<tb><SEP> ment
<tb><SEP> 14 <SEP> Coating- <SEP> 37 <SEP> 1050 <SEP> 7.1 <SEP> 30
<tb><SEP> ment
<tb><SEP> 15 <SEP> Coating- <SEP> 37 <SEP> 1050 <SEP> 7.1 <SEP> 50
<tb><SEP> ment
<tb><SEP> 16 <SEP> Coating- <SEP> 37 <SEP> 1050 <SEP> 7.1 <SEP> 70
<tb> ment
<tb><SEP> 17 <SEP> 2 <SEP> 48 <SEP> Ni <SEP> 16.1 <SEP> 20
<Tb>

Claims (6)

 1 / metal composite material of the type noyaugaine, characterized in that it comprises  - a core (11,21) of aluminum or aluminum-based alloy  - and a sheath (12,22) made of titanium or titanium-based alloy fixed on the core (11,21).  2 / composite material according to claim 1, characterized in that the transverse inclusion surface area ratio of the sheath (12,22) relative to the core (11,21) is between 12 and 60%,  3 / composite material, characterized in that it comprises  a core (21) made of aluminum or an alloy based on aluminum,  an intermediate core (22) made of titanium or a titanium-based alloy fixed on the core,  an intermediate sheath (23) made of nickel or a nickel-based alloy and fixed on the intermediate core,  - And a sheath (24) made of gold or gold-based alloy, platinum or platinum-based alloy, and fixed on the intermediate sheath.  4 / composite material according to claim 3, characterized in that the transverse surface ratio of the inclusion of the intermediate core (22) relative to the core (21) is between 12 and 60 X.  5 / composite material according to claim 3, characterized in that the thickness of the intermediate sheath (23) is in a range of 10 to 200% of that of the sheath (24).  6 / spectacle frame characterized in that it is made from a composite material according to one of claims 1 to 5.