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PCB melamine aluminum drill entry sheet


aluminum drill entry sheet

 
         According to the different materials, the market is usually divided into four categories: 
phenolic paper sheet(including phenolic paper cover and cold sheet). coated resin aluminum sheet. (also known as lubrication aluminium sheet). aluminium entry sheet (Ie aluminium entry foil), epoxy glass cloth sheet. Phenolic paper sheet industry less amount. and cold sheet( known as phenolic paper sheet) is  used for flexible plate drilling. coated resin aluminum sheet for HDI board. dense BGA, IC board, etc.

      Micro-hole drilling and flexible plate drilling. made of resin and aluminum foil; aluminum entry sheet or aluminum entry foil. for ordinary and fine circuit board drilling, made of alloy aluminum foil. epoxy glass cloth cover. by the ring Oxygen resin and fiberglass cloth composition. the current market use very little. Besides, there have been a composite aluminum sheet. from wood pulp (core) and aluminum foil composition,  rare, has been out of the market.
 
       With the development of PCB technology, PCB drilling holes are getting smaller. and smaller, more and more holes. drilling technology requirements are getting higher and higher. entry sheet on the drilling quality of the impact is more important. Some high-end or high-tech requirements of the PCB boards. generally use some of the high-end entry sheet. PCB in the market with the entry sheet of the product structure. with the development of PCB technology.

       PCB product structure continues to upgrade, and PCB drilling technology upgrade. The selection of drilling materials are in the high block plate. such as lubricating aluminum sheet, cold sheet. phenolic paper pad, melamine wood plate. In particular, high-grade LE sheet, PCB drilling special entry material. HDI (including IC carrier board) with cover, flexible PCB drilling with cold plate.  become the market faster varieties.

aluminum drill entry sheet

coated aluminium sheet for PCB advantages

 
 
Technical Data
 
Temper: H 19 extra hard
 
Elongation: > 3 %
 
Surface roughness: approx. 3.5 µm
 
Thickness tolerance: + 0.01 /- 0.02 mm
 
Excellent heat dissipation of aluminium drill entry sheet cools the drill bit to. reduce the risk of resin build-up in the flutes.
Defined surface roughness combined with excellent flatness  designed to benefit drill centring. reduce drill wander and avoid drill breakage.
Excellent burr reduction due to high surface hardness and material stiffness
Protects the circuit board against scratches and pressure foot marks
Thickness options available for different applications
Solid aluminium drill entry can be  recycled.
 


china aluminum drill entry sheet Types

 
7075 aluminum drill entry sheet
7075 aluminum drill entry sheet are manufacture with strict requirements and advanced technology.
 
6061 aluminum drill entry sheet
6061 aluminum drill entry sheet is a widely used aluminum drilling entry sheet for PCB. aluminum drill entry sheet  spread all over the world.
 
5754 aluminum drill entry sheet
5754 aluminum drill entry sheet of Haomei aluminum. are with best quality and good service. our product 5754 aluminum drilling entry sheet are famous in the world.
 
5083 aluminum drill entry sheet
5083 aluminum drill entry sheet also named as 5083 aluminum drilling entry sheet. which are with high quality and advance technology. we want to highlight our product 5083 PCB drill entry sheet to you.
 
3014 aluminum drill entry sheet
3014 aluminum drill entry sheets  manufactured with state-of-the-art equipment which matches international standards. Tight thickness tolerance, flatness, dimensional accuracy and grease-free surface. and hardness optimal for burr-free drilling required in the manufacture of PCB  ensured.
 
aluminum drilling entry sheet
PCB aluminum drilling entry sheets  manufactured with state-of-the-art equipment. Tight thickness tolerance, flatness, dimensional accuracy. and grease-free surface and hardness optimal for burr-free drilling required.
 
aluminum drill entry sheet
Aluminium drill entry sheet  manufactured for use with double-sided . and multilayer circuit boards to meet both the performance. and cost requirements for general PCB drilling.
 
3003 aluminum drill entry sheet
3003 aluminum drilling entry sheet  manufactured with advanced technology and machine. Our products’ tolerance, flatness, dimensional, surface, hardness, burr-free match industry standards.
 
1235 aluminum drill entry sheet
Haomei's 1235 aluminum drilling entry sheet  manufactured with international standards. Our products have the advantages of tight thickness tolerance. dimensional accuracy and grease-free surface. and hardness optimal for burr-free drilling required in the manufacture PCB.
 
1145 aluminum drill entry sheet
1145 aluminum drilling entry sheet  manufactured with professional equipment. Tight thickness tolerance, flatness, dimensional accuracy. no grease surface and hardness optimal, burr-free drilling are the features.
 
1100 aluminum drill entry sheet
1100 aluminum drilling entry sheet have many advantages. such as tight thickness tolerance, flatness, dimensional accuracy. grease-free surface and hardness optimal for burr-free drilling of PCB  ensured.
 
1060 aluminum drill entry sheet
1060 aluminum drill entry sheet  manufactured with world famous top equipment. Tight thickness tolerance, flatness, dimensional accuracy . and grease-free surface and hardness optimal. for burr-free drilling required in the manufacture of PCB  ensured.
 
1050 aluminum drill entry sheet
1050 aluminium drill entry sheet  manufactured with state-of-the-art equipment. Tight thickness tolerance. flatness, dimensional accuracy and grease-free surface and hardness optimal. for burr-free drilling of PCB  ensured.


laminated aluminium sheet

coated aluminium sheet for pcb drilling process

 
      A printed circuit board (PCB) serves as a foundation. and mechanical support for electronic components. Non-conductive surfaces. printed circuit boards are also referred to as etched wiring boards. and printed wiring boards. After it  populated with conductive pathways, signal traces and electronic components. it  referred to either as a printed circuit board assembly (PCBA) or a printed circuit assembly (PCA).
 
       An entry material for use in drilling circuit boards to avoid marring of. such boards comprises a wood pulp-glass. composite substrate (14) having aluminum foil (15, 16). bonded to the opposite surfaces thereof. This entry material is  cheap and has a stiffness. enough to avoid upward bending or "oil canning" when pressure feet spaced from the drill.  employed to hold the workpiece during drilling. and further has enough strength to. withstand high torsional drill forces with drills operating. for high rates of material removal. The double layers of foil separated by the low heat. conductive substrate material affords a pair of heat sinks. which more  can carry away heat from the drill.
 
 
      The first step in the manufacturing PCB (for two layer) is drilling. The CNC drill machines are enormous. Some of the machinces are setup to drill three panels at once. and one of the bigger machines (pictured below) could drill six panels of PCBs ! A layer of aluminum foil sheet  laid down. over the board stock to help absorb and distribute heat from the drilling process.
 
       After drilling, the PCB panels have the aluminium foil sheet covering removed. and are ran through a machine to remove burs. and smooth out any other abraisions that may have happened. during the drilling process. This ensures that surface is.  uniform for the electroless chemical plating process, the next step. The aluminum foil sheet protects the board.After  drilled, the boards  cleaned.
 

aluminum drill entry sheet manufacturers - Yueshan

   
      YUESHAN is located in Fanhu Economic Advancement Area,Leping Town, Sanshui District, Foshan City, Guangdong, covers a spot around 70,000m² with an of than 300 personnels.We specializes in producing, processing, offering melamine confronted particle board, melamine confronted MDF, melamine confronted plywood, and PCB driIling back-up board,ánd melamine table cut to size service


       After much more than a decade of creating and advancement, Yueshan carries a large-scale production foundation, worldwide standard administration program and creation circulation óf panel-type household furniture,offer melamine slice to size support, collects high-quality administration group, intra-market veteran professional. The annual result is finished 50 million items. Down the road, Yueshan can keep steady quality and best service to generate the trust of customers, therefore to increasing acknowledgement and standing of the business and try to become essentially the most influential and respected businesses on the market.
 
      Yueshan  Aluminium drill entry  manufactured to HOLDERS
specifications under ISO 9001.
The manufacturing limits and tolerances  based on
extensive user experience in this specialised application
and ensure consistent, satisfactory performance as drill
entry.
 
     You can order:
 
Aluminium drill entry 0.2 mm
Aluminium drill entry 0.25 mm
0.3 mm aluminium sheet
Aluminium drill entry  supplied in production ready panels in customer specified dimensions.
Aluminium drill entry panels can also  supplied with tooling holes under customer requirements. 

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