Development background:

With the advancement of human technology, many products nowadays have more and more demand for tiny system components, parts and sub-assemblies, which in turn leads to the demand for small products (such as medical operation small tweezers with a diameter of 0.6mm) and molds. These have become the challenges faced by manufacturers. In order to ensure the efficient and safe tool path generated by micro-milling and to obtain the required surface quality, people need software with new geometric algorithms and processing strategies.

Cimatron was the first to recognize the challenges of machining small parts, so Cimatron joined the micro-milling research project organized by the European Community as a representative of processing software Cimatron and Fuaunhofer Product Technology Research Institute (IPT) and leading machine tools. Manufacturers have joined the project to propose solutions for the processing of micro-products.

Features provided by Cimatron:

Cimatron is the first commercial CAD/CAM software solution that can handle micromachining. In order to meet the processing requirements of high precision micro parts, Cimatron can create a new tool path form to meet the special extremes of this part. The condition, which allows a minimum programming tolerance of 0.0001 mm, provides very high precision and quality for moldmakers and product processing. The following table provides Cimatron's capabilities for micromachining:

Customer example introduction:

Foreign customers:

Since April 2003, with the support of the European Community, the Technical Research Organization (CRAFT) has been conducting research on micro-milling of injection molds for micro-plastic components for up to 24 months. Under the leadership of the Fraunhofer Institute of Production Technology (IPT), the project covers the entire process from technology supply to micromachining, including CAD/CAM software supplier (Cimatron Gmbh), milling machine manufacturer (Kern), tool manufacturer (Magafor). As well as mold manufacturers (Promolding BV, Structoform, and MMT AG), mold material hardness to 53HRc, micro mold milling accuracy <5um surface roughness <0.2um Ra.

The test project uses Cimatron E software that provides CAD/CAM integrated solutions for the tooling industry. Cimatron uses solid surface hybrid modeling technology, and its ACIS core technology provides internal precision of up to 1 nm.

If the imported product data model is of poor quality, it must be fixed before the CAM operation. Some small holes or gaps may result in a low quality of the final machined workpiece. Unlike pure solid modeling, Cimatron's hybrid modeling features a "design for manufacturing" feature that fixes geometric models and fuses gaps into solids through various surface functions.

Magafor offers special tools for this project with a tool diameter of up to 50um and a spindle speed of 160,000 rpm for smooth cutting. In order to reduce the risk of preventing discontinuous micro-surfaces generated during tool change, Cimatron E offers a variety of machining strategies. Slash or spiral lower knives are supported in the NC strategy to ensure maximum smooth and continuous entry of the tool into the workpiece.

Through the application of high-speed cutting (HSC) strategy in the process to obtain a uniform tool path, and the use of blank residue knowledge to prevent the broken knife, to open the micro cavity.

A variety of finishing strategies were used for testing in this project. It is also found that the surface-based NC strategy sometimes produces uneven paths, and better results are achieved by using the 3D step strategy to join the HSC. At the same time, Cimatron E also provides a milling strategy that defines the U-V direction on the surface, which proves to be the most suitable finishing strategy for micro-milling. By processing the micro rotor in the U-V direction, a test cavity is produced and a high machining accuracy is obtained.

Cimatron's micro-milling technology ensures efficient and safe toolpath trajectory by identifying real residual micro-blanks and the same functions of roughing, secondary roughing, finishing micro and cycloidal roughing. The 5-axis inclination angle satisfies the need for a very small diameter short-cone knife for part machining, as well as high hardness and high surface quality. To meet the requirements of high-speed milling, Cimatron uses a variety of high-speed milling strategies such as corner fillet connections, zero overlap cycloidal finishing, S-joint and spiral lower knives, adaptive Z-layer finishing and streamline machining. At the same time, Cimatron can repair micro-cracks and overlap to efficiently process the imported damage data through the powerful CAD function to meet the special requirements of micro-milling. Cimatron E also supports spline approximation machining and streamline milling to reduce machining time and reduce tool wear and damage.

The set of rotor molds shown below is manufactured using Cimatron's micro-milling technology.

Tool diameter 0.05mm, spindle speed 160000rpm

To achieve this scaling with a more user-friendly interface, Cimatron supports a seamless scaling computing environment that is scaled up in a computing environment, without any input or output including models, views, simulations, NC reports, G code. Will have any effect from it.

Domestic customers:

Beijing AgieCharmilles Beijing Application Center successfully processed high-precision electronic components with a diameter of only 0.1mm (Figure 1). The finished product has a semi-circular surface and the cutting material used is between HRC55-58. .

The machining of this electronic component was carried out by the Mikron HS500 high-speed milling machining center. It was equipped with a high-speed spindle with a speed of 42000r/pm and a corresponding micro-machining tool system, and used CimatronE micro-milling software.

AgieCharmilles' Mikron HSM500 high-speed milling center (picture 2 above) is designed for precision electronic mold users and small precision parts processing industries. Its bed structure is gantry frame type, made of concrete polymer (artificial marble), which can effectively absorb the strong impact force generated under high acceleration, thus ensuring high processing precision.

to sum up:

Through the above two examples, Cimatron's micro-milling software is the world's first commercial application software for CNC milling of micro-components. It is mainly used in the design and manufacture of high-precision micro-parts and molds. The perfect combination with low cost.

CimatronE micro-milling software can achieve ultra-high surface quality up to 0.0001mm tolerance by using very small tools (less than 0.1mm in diameter). With its embedded CAD tools, the smooth operation of high-geometry algorithms ensures the design and manufacture of high-precision tiny parts and molds.

Schindler Moving Walk Spare Parts

Schindler 9500-35 - optimal price/performance

Versatility on demand
Schindler 9500 moving walks share the design versatility of Schindler escalators. There is a wide choice of materials, finishes, colors, sizes, lighting and other options that can be combined to produce customized solutions. It can accommodate transportation lengths up to 100 meters.

• Inclination from 0° to 3°
• Pallet widths of 800 mm and 1000 mm
• Balustrade heights of 900 mm and 1000 mm
• Balustrade panels available in multiple color options, brushed stainless sandwich panels, or powder coated sheet steel
• Two balustrade design variants
• Balustrade profiles and deckings in stainless steel or powder-coated aluminum
• Cladding available in stainless steel or painted sheet steel
• A choice of stainless steel or ribbed aluminum floor covers
• Various lighting options, including balustrade and skirt lighting
• Can be installed indoors and outdoors, covered.
  

Schindler 9500-45 - plenty of space to maneuver

The high-performance moving walk for long distances
With the maximum pallet width of 1400 mm it is possible to accommodate as many as 16,000 passengers per hour. Schindler 9500-45 is able to cover high transport volumes and transportation lengths of up to 150 meters.

Flat construction
The flat construction of Schindler 9500-45, which has no truss and is only 400 mm high in its central part, is a great advantage when space is at a premium.

Long service life
The extremely stable pallets, with a depth of 400 mm, and the durable connection elements are built to withstand even the most punishing use. The robust stainless steel balustrade and the solid, steel-reinforced newel end are virtually resistant to damage caused by carelessness or vandalism.

Schindler 9500 10/15 - inclined moving walk

Especially developed for shopping malls, Schindler 9500 10-15 inclined moving walks provide quiet, comfortable transportation from floor to floor, even with a fully loaded shopping cart. Schindler products never compromise quality, assuring dependable performance and passenger safety. Streamlined and flexible in design, these units leave plenty of room for architectural expression, indoors or out.

Streamlined construction
No moving walk on the market is more compact than the Schindler 9500/10-15.

• Incline ranging from 10° to 12°
• Short installed lengths
• Ideal for covering short distances
  
• 10° flat combs at both ends allow shopping carts to roll on and off easily
• Ideal for outside use
  
• Pallets are guided beneath the skirt for maximum user safety
• Cambered pallet surface delivers excellent grip when damp or wet.
  

Small installation dimensions
Patented short pallets with a depth of only 133 mm greatly reduce the transition curves. As a result, these moving walks require minimum installation space.

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