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 Expert  724470

Expert in High Speed Wire Drawing: Up to 50 m/sec low carbon and 30 m/sec high carbon steels

Available for your Consulting and Expert Witness Needs

Education Work History Consulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has been working with the steel wire drawing for more than 31 years and the processes relate to steel wire industry such as annealing, spheroidizing low alloy and high carbon steels, lead patenting, galvanizing, stabilization and stress reliving, acid pickling, mechanical descaling. Expert is metallurgical engineer with knowledge to solve a lot of problems that the wire mills face. He is a specialist on very high drawing speeds including the expertise for maintaining this high speeds trough the year. He is very able to find quickly where the problems are. From wire rod defects, poor quality of auxiliary materials, die schedule, machine set up and special requirements from customers.

metal forming

Expert has also a lot of experience in metal working related to wire drawing, such as welded mesh, nails, wire straightening, chain link fence.


Expert Sierra has a very broad experience in managing wire mills plants. He has been the leader in getting the ISO 9000 certification. He is very able to manage a metallurgical laboratory and its procedures for many metallurgical tests, as well the chemical analysis related to the wire. He also can prepare and negotiate the Union's contracts. He has been for many years the chief manager for production areas. He has been Process Engineer, Chief Metallurgist, Plant Manager, Operations Manager and General Director in wire mills plants so he has the complete view for a wire mill. He can foresee any implications of a technical decision on the profit of the company or personnel and or union's effects. He also is able to assess the Return On Investment for any wire project, from costs of production, investment, finance, break even point, cash flow, etcetera.

plant operations management

Show Secondary and Basic Areas of Expertise

Often requested
with this expert:

Steel Wire Manufacturing Process
Assembly Tooling, Wire Drawing, Cable Insulation, Safety...
Electrical Connector Design and Materials, Electrical...
Electrical Connectors

Year   Degree   Subject   Institution  
1975   BS   Metallurgical Engeenering   National Polithecnic Institute  

Work History:
Years   Employer   Department   Title   Responsibilities

2002 to 2003


Grupo Acerero de Hidalgo




General Director


Sales, finance, Operations, Engineering, Human Resources, Administration

1993 to 2001


Grupo Acerero de Hidalgo




Plant Manager


He is responsible for Wire Production, Maintenance, Quality, Materials and Shipping, Engineering. ISO 9000

1992 to 1991


Metrology National Center






Sales of the National Laboratory

1984 to 1990


Altos Hornos de México


Wire Mill Facility


Plant manager


He is responsible for Wire Production, Maintenance, Quality, Materials and Shipping, Engineering.

1976 to 1989


Altos hornos de México


Wire mill


Metallurgical Chief


He is responsible for the quality department and process development

2004 to








He is an International consulting engineer. He has consulted 18 major companies since 2004, for improving the speed of their machines.

Consulting Services:
Selected Consulting Examples:
  • He started up five new wire drawings machines on Rumania. All of them were left working at the highest speeds on the world
  • He started two wire drawings machines on Russian Federation for high carbon steel on the first week of commissioning leaving the company working at high speed-
  • He started two high carbon steel machines in Portugal for producing upholstery spring wire for 30 m/sec using machines without tuner roll sensor.
  • He set up the process for 15 wire drawing machines for low carbon at its highest speeds. This was made i Russian Federation
  • He set up the wire drawing process for a staples company in USA. He got bright wire at high speed so the customer could get the brightness without galvanizing.
Recent Client Requests:
  • Expert in Rare-earth Magnet.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

International Experience:
Years   Country / Region   Summary
2005 to 2005   Rumania   He started up a new plant with five new wire drawing machines. They were working at their highest speeds.
2006 to 2006   Russian Federation   He started up 15 drawing machines at high speed. Trainig engeeners and operators.
2005 to 2005   USA   He eliminated the need for galvanizing for a special staple. The wire process were modified so the staple were produced bright already and at high speed
2007 to 2007   Mumbai, India   He set up the process for a new wire drawing machine at high speed for a customer who is new on this business
2007 to 2007   Greece   He made several technical assistance for fine tuning the wire drawing process to get the high speed needed.

Language Skills:
Foreign Language   Description
English   He has a good usage of english for comunicating anywhere in the world
Spanish   Mother language

Additional Skills and Services:

He has developed special training courses for steel wire drawing business and related processes such as galvanizing, annealing, spheroidizing, pickling, stress relieving, hardening, influence of alloys on steel

Supplier and Vendor Location and Selection

He can advise regarding the best suppliers brands for wire drawing business.


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